code/docs: Use correct case for IPv4 and IPv6

For consistency, as we seem to have a bit of a mixed bag, changed all
instances of ipv4 and ipv6 in comments and documentations to use the
correct case.

1 files changed, 2 insertions, 2 deletions

diff --git a/lib/ftp.c b/lib/ftp.c
index 3eabec08c..2f4351e0c 100644
--- a/lib/ftp.c
+++ b/lib/ftp.c
@@ -1254,10 +1254,10 @@ static CURLcode ftp_state_use_port(struct connectdata *conn,
       continue;
 
     if((PORT == fcmd) && sa->sa_family != AF_INET)
-      /* PORT is ipv4 only */
+      /* PORT is IPv4 only */
       continue;
 
-    switch (sa->sa_family) {
+    switch(sa->sa_family) {
     case AF_INET:
       port = ntohs(sa4->sin_port);
       break;