doc/cmdline: fix grammar and typos

Closes https://github.com/curl/curl/pull/7454
Closes https://github.com/curl/curl/pull/7455
Closes https://github.com/curl/curl/pull/7456
Closes https://github.com/curl/curl/pull/7459
Closes https://github.com/curl/curl/pull/7460
Closes https://github.com/curl/curl/pull/7461
Closes https://github.com/curl/curl/pull/7462
Closes https://github.com/curl/curl/pull/7463

8 files changed, 36 insertions, 37 deletions

diff --git a/docs/cmdline-opts/max-redirs.d b/docs/cmdline-opts/max-redirs.d
index ba16c43fc..1b5de5bc1 100644
--- a/docs/cmdline-opts/max-redirs.d
+++ b/docs/cmdline-opts/max-redirs.d
@@ -4,8 +4,8 @@ Help: Maximum number of redirects allowed
 Protocols: HTTP
 Category: http
 ---
-Set maximum number of redirection-followings allowed. When --location is used,
-is used to prevent curl from following redirections too much. By default, the
-limit is set to 50 redirections. Set this option to -1 to make it unlimited.
+Set maximum number of redirections to follow. When --location is used, to
+prevent curl from following too many redirects, by default, the limit is
+set to 50 redirects. Set this option to -1 to make it unlimited.
 
 If this option is used several times, the last one will be used.
diff --git a/docs/cmdline-opts/metalink.d b/docs/cmdline-opts/metalink.d
index 1dced5c72..4725b389a 100644
--- a/docs/cmdline-opts/metalink.d
+++ b/docs/cmdline-opts/metalink.d
@@ -4,5 +4,4 @@ Added: 7.27.0
 Category: misc
 ---
 This option was previously used to specify a metalink resource. Metalink
-support has unfortunately been disabled in curl since 7.78.0 due to security
-reasons.
\ No newline at end of file
+support has been disabled in curl since 7.78.0 for security reasons.
diff --git a/docs/cmdline-opts/netrc.d b/docs/cmdline-opts/netrc.d
index cab3385b4..a31e2ede3 100644
--- a/docs/cmdline-opts/netrc.d
+++ b/docs/cmdline-opts/netrc.d
@@ -6,10 +6,10 @@ Category: curl
 Makes curl scan the *.netrc* (*_netrc* on Windows) file in the user's home
 directory for login name and password. This is typically used for FTP on
 Unix. If used with HTTP, curl will enable user authentication. See
-*netrc(5)* *ftp(1)* for details on the file format. Curl will not
-complain if that file doesn't have the right permissions (it should not be
-either world- or group-readable). The environment variable "HOME" is used to
-find the home directory.
+*netrc(5)* and *ftp(1)* for details on the file format. Curl will not
+complain if that file doesn't have the right permissions (it should be
+neither world- nor group-readable). The environment variable "HOME" is used
+to find the home directory.
 
 A quick and very simple example of how to setup a *.netrc* to allow curl
 to FTP to the machine host.domain.com with user name \&'myself' and password
diff --git a/docs/cmdline-opts/noproxy.d b/docs/cmdline-opts/noproxy.d
index 12ce6d3ed..c49e6d180 100644
--- a/docs/cmdline-opts/noproxy.d
+++ b/docs/cmdline-opts/noproxy.d
@@ -4,13 +4,13 @@ Help: List of hosts which do not use proxy
 Added: 7.19.4
 Category: proxy
 ---
-Comma-separated list of hosts which do not use a proxy, if one is specified.
-The only wildcard is a single * character, which matches all hosts, and
-effectively disables the proxy. Each name in this list is matched as either
-a domain which contains the hostname, or the hostname itself. For example,
-local.com would match local.com, local.com:80, and www.local.com, but not
-www.notlocal.com.
+Comma-separated list of hosts for which not to use a proxy, if one is
+specified. The only wildcard is a single * character, which matches all hosts,
+and effectively disables the proxy. Each name in this list is matched as
+either a domain which contains the hostname, or the hostname itself. For
+example, local.com would match local.com, local.com:80, and www.local.com, but
+not www.notlocal.com.
 
 Since 7.53.0, This option overrides the environment variables that disable the
-proxy. If there's an environment variable disabling a proxy, you can set
-noproxy list to \&"" to override it.
+proxy ('no_proxy' and 'NO_PROXY'). If there's an environment variable
+disabling a proxy, you can set the noproxy list to \&"" to override it.
diff --git a/docs/cmdline-opts/page-footer b/docs/cmdline-opts/page-footer
index b101ace35..c88cd5fab 100644
--- a/docs/cmdline-opts/page-footer
+++ b/docs/cmdline-opts/page-footer
@@ -17,7 +17,7 @@ Sets the proxy server to use for HTTPS.
 .IP "[url-protocol]_PROXY [protocol://]<host>[:port]"
 Sets the proxy server to use for [url-protocol], where the protocol is a
 protocol that curl supports and as specified in a URL. FTP, FTPS, POP3, IMAP,
-SMTP, LDAP etc.
+SMTP, LDAP, etc.
 .IP "ALL_PROXY [protocol://]<host>[:port]"
 Sets the proxy server to use if no protocol-specific proxy is set.
 .IP "NO_PROXY <comma-separated list of hosts/domains>"
@@ -82,7 +82,7 @@ Makes it the equivalent of --socks5
 Makes it the equivalent of --socks5-hostname
 .SH EXIT CODES
 There are a bunch of different error codes and their corresponding error
-messages that may appear during bad conditions. At the time of this writing,
+messages that may appear under error conditions. At the time of this writing,
 the exit codes are:
 .IP 1
 Unsupported protocol. This build of curl has no support for this protocol.
@@ -97,7 +97,7 @@ this, you probably need another build of libcurl!
 .IP 5
 Couldn't resolve proxy. The given proxy host could not be resolved.
 .IP 6
-Couldn't resolve host. The given remote host was not resolved.
+Couldn't resolve host. The given remote host could not be resolved.
 .IP 7
 Failed to connect to host.
 .IP 8
@@ -237,7 +237,7 @@ Character conversion failed.
 .IP 76
 Character conversion functions required.
 .IP 77
-Problem with reading the SSL CA cert (path? access rights?).
+Problem reading the SSL CA cert (path? access rights?).
 .IP 78
 The resource referenced in the URL does not exist.
 .IP 79
@@ -249,19 +249,19 @@ Could not load CRL file, missing or wrong format (added in 7.19.0).
 .IP 83
 Issuer check failed (added in 7.19.0).
 .IP 84
-The FTP PRET command failed
+The FTP PRET command failed.
 .IP 85
-RTSP: mismatch of CSeq numbers
+Mismatch of RTSP CSeq numbers.
 .IP 86
-RTSP: mismatch of Session Identifiers
+Mismatch of RTSP Session Identifiers.
 .IP 87
-unable to parse FTP file list
+Unable to parse FTP file list.
 .IP 88
-FTP chunk callback reported error
+FTP chunk callback reported error.
 .IP 89
-No connection available, the session will be queued
+No connection available, the session will be queued.
 .IP 90
-SSL public key does not matched pinned public key
+SSL public key does not matched pinned public key.
 .IP 91
 Invalid SSL certificate status.
 .IP 92
diff --git a/docs/cmdline-opts/page-header b/docs/cmdline-opts/page-header
index b66310aa2..f96ed6596 100644
--- a/docs/cmdline-opts/page-header
+++ b/docs/cmdline-opts/page-header
@@ -32,7 +32,7 @@ curl \- transfer a URL
 is a tool to transfer data from or to a server, using one of the supported
 protocols (DICT, FILE, FTP, FTPS, GOPHER, HTTP, HTTPS, IMAP, IMAPS, LDAP,
 LDAPS, MQTT, POP3, POP3S, RTMP, RTMPS, RTSP, SCP, SFTP, SMB, SMBS, SMTP,
-SMTPS, TELNET and TFTP). The command is designed to work without user
+SMTPS, TELNET or TFTP). The command is designed to work without user
 interaction.
 
 curl offers a busload of useful tricks like proxy support, user
@@ -98,7 +98,7 @@ curl will attempt to re-use connections for multiple file transfers, so that
 getting many files from the same server will not do multiple connects /
 handshakes. This improves speed. Of course this is only done on files
 specified on a single command line and cannot be used between separate curl
-invokes.
+invocations.
 .SH OUTPUT
 If not told otherwise, curl writes the received data to stdout. It can be
 instructed to instead save that data into a local file, using the --output or
@@ -106,7 +106,7 @@ instructed to instead save that data into a local file, using the --output or
 command line, it similarly needs multiple options for where to save them.
 
 curl does not parse or otherwise "understand" the content it gets or writes as
-output. It does no encoding or decoding, unless explicitly asked so with
+output. It does no encoding or decoding, unless explicitly asked to with
 dedicated command line options.
 .SH PROTOCOLS
 curl supports numerous protocols, or put in URL terms: schemes. Your
@@ -173,8 +173,8 @@ If you want a progress meter for HTTP POST or PUT requests, you need to
 redirect the response output to a file, using shell redirect (>), --output or
 similar.
 
-It is not the same case for FTP upload as that operation does not spit out
-any response data to the terminal.
+This does not apply to FTP upload as that operation does not spit out any
+response data to the terminal.
 
 If you prefer a progress "bar" instead of the regular meter, --progress-bar is
 your friend. You can also disable the progress meter completely with the
@@ -196,5 +196,5 @@ In general, all boolean options are enabled with --**option** and yet again
 disabled with --**no-**option. That is, you use the exact same option name
 but prefix it with "no-". However, in this list we mostly only list and show
 the --option version of them. (This concept with --no options was added in
-7.19.0. Previously most options were toggled on/off on repeated use of the
-same command line option.)
+7.19.0. Previously most options were toggled on/off through repeated use of
+the same command line option.)
diff --git a/docs/cmdline-opts/pass.d b/docs/cmdline-opts/pass.d
index f6633d242..e3fb97ae6 100644
--- a/docs/cmdline-opts/pass.d
+++ b/docs/cmdline-opts/pass.d
@@ -4,6 +4,6 @@ Help: Pass phrase for the private key
 Protocols: SSH TLS
 Category: ssh tls auth
 ---
-Passphrase for the private key
+Passphrase for the private key.
 
 If this option is used several times, the last one will be used.
diff --git a/docs/cmdline-opts/proto.d b/docs/cmdline-opts/proto.d
index 051cb98e2..1e269a56c 100644
--- a/docs/cmdline-opts/proto.d
+++ b/docs/cmdline-opts/proto.d
@@ -5,7 +5,7 @@ See-also: proto-redir proto-default
 Added: 7.20.2
 Category: connection curl
 ---
-Tells curl to limit what protocols it may use in the transfer. Protocols are
+Tells curl to limit what protocols it may use for transfers. Protocols are
 evaluated left to right, are comma separated, and are each a protocol name or
 \&'all', optionally prefixed by zero or more modifiers. Available modifiers are:
 .RS