Doc: Replace "C:\Documents and Settings" paths

"C:\Documents and Settings" isn't a real path anymore since Windows Vista.
Replace it by C:\Users, or - in the snippet for QDesktopServices that
is for demoing a path with space - with C:\Program Files.

Pick-to: 6.2 6.3 5.15
Change-Id: I1bef97b6482180a6467fffcd1d62d6c168bcb389
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>

src/corelib/doc/snippets/code/src_corelib_io_qdir.cpp

@@ -54,7 +54,7 @@ void wrapInFunction()
 
 //! [0]
 QDir("/home/user/Documents")
-QDir("C:/Documents and Settings")
+QDir("C:/Users")
 //! [0]
 
 
@@ -154,7 +154,7 @@ if (d1 != d2)
 
 
 //! [12]
-C:/Documents and Settings/Username
+C:/Users/Username
 //! [12]
 
 

src/corelib/doc/snippets/code/src_corelib_io_qfileinfo.cpp

@@ -74,9 +74,9 @@ info2.size();               // returns 56201
 //! [1]
 #ifdef Q_OS_WIN
 
-QFileInfo info1("C:\\Documents and Settings\\Bob\\untabify.lnk");
+QFileInfo info1("C:\\Users\\Bob\\untabify.lnk");
 info1.isSymLink();          // returns true
-info1.absoluteFilePath();   // returns "C:/Documents and Settings/Bob/untabify.lnk"
+info1.absoluteFilePath();   // returns "C:/Users/Bob/untabify.lnk"
 info1.size();               // returns 743
 info1.symLinkTarget();      // returns "C:/Pretty++/untabify"
 

src/corelib/io/qdir.cpp

@@ -395,7 +395,7 @@ inline void QDirPrivate::initFileEngine()
     \snippet code/src_corelib_io_qdir.cpp 0
 
     On Windows, the second example above will be translated to
-    \c{C:\Documents and Settings} when used to access files.
+    \c{C:\Users} when used to access files.
 
     Examples of relative paths:
 

src/gui/doc/snippets/code/src_gui_util_qdesktopservices.cpp

@@ -84,7 +84,7 @@ mailto:user@foo.com?subject=Test&body=Just a test
 
 void wrapper1() {
 //! [2]
-QDesktopServices::openUrl(QUrl("file:///C:/Documents and Settings/All Users/Desktop", QUrl::TolerantMode));
+QDesktopServices::openUrl(QUrl("file:///C:/Program Files", QUrl::TolerantMode));
 //! [2]
 }