Fix typos in docs and comments

Found by codespell

Change-Id: Ie3e301a23830c773a2e9aff487c702a223d246eb
Reviewed-by: Nicholas Bennett <nicholas.bennett@qt.io>
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
(cherry picked from commit 9d2cc4dd766ca6538e17040b6ac845ed880ab0fe)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>

3 files changed, 3 insertions, 3 deletions

diff --git a/src/network/access/qnetworkdiskcache.cpp b/src/network/access/qnetworkdiskcache.cpp
index fe145a323d..cf07f51d4c 100644
--- a/src/network/access/qnetworkdiskcache.cpp
+++ b/src/network/access/qnetworkdiskcache.cpp
@@ -562,7 +562,7 @@ QString QNetworkDiskCachePrivate::uniqueFileName(const QUrl &url)
     const QByteArray hash = QCryptographicHash::hash(cleanUrl.toEncoded(), QCryptographicHash::Sha1);
     // convert sha1 to base36 form and return first 8 bytes for use as string
     const QByteArray id = QByteArray::number(*(qlonglong*)hash.data(), 36).left(8);
-    // generates <one-char subdir>/<8-char filname.d>
+    // generates <one-char subdir>/<8-char filename.d>
     uint code = (uint)id.at(id.length()-1) % 16;
     QString pathFragment = QString::number(code, 16) + u'/' + QLatin1StringView(id) + CACHE_POSTFIX;
 
diff --git a/src/network/kernel/qhostaddress.cpp b/src/network/kernel/qhostaddress.cpp
index efaddf05fc..8fb321bf20 100644
--- a/src/network/kernel/qhostaddress.cpp
+++ b/src/network/kernel/qhostaddress.cpp
@@ -784,7 +784,7 @@ bool QHostAddress::operator==(const QHostAddress &other) const
     Returns \c true if this host address is the same as the \a other address
     given; otherwise returns \c false.
 
-    The parameter \a mode controls which conversions are preformed between addresses
+    The parameter \a mode controls which conversions are performed between addresses
     of differing protocols. If no \a mode is given, \c TolerantConversion is performed
     by default.
 
diff --git a/src/network/ssl/qtlsbackend.cpp b/src/network/ssl/qtlsbackend.cpp
index 2d01bdaa3c..bc5b492d0f 100644
--- a/src/network/ssl/qtlsbackend.cpp
+++ b/src/network/ssl/qtlsbackend.cpp
@@ -1696,7 +1696,7 @@ TlsKey *X509Certificate::publicKey() const
 /*!
     \class TlsCryptograph
     \internal (Network-private)
-    \brief TlsCryptograph is an abstract class, that allows a TLS pluging to implement QSslSocket.
+    \brief TlsCryptograph is an abstract class, that allows a TLS plugin to implement QSslSocket.
 
     This abstract base class provides an interface that must be reimplemented by a TLS plugin,
     that supports QSslSocket. A class, implementing TlsCryptograph's interface, is responsible