Use fusion instead of motif.

Change-Id: Ic75ea959ac825efabf0f3a8606dfca4b65fae474
Reviewed-by: Jens Bache-Wiig <jens.bache-wiig@digia.com>

src/corelib/doc/snippets/qprocess/qprocess-simpleexecution.cpp

@@ -56,7 +56,7 @@ int main(int argc, char *argv[])
 
 //! [2]
     QStringList arguments;
-    arguments << "-style" << "motif";
+    arguments << "-style" << "fusion";
 
     QProcess *myProcess = new QProcess(parent);
     myProcess->start(program, arguments);

src/corelib/io/qprocess.cpp

@@ -458,8 +458,8 @@ void QProcessPrivate::Channel::clear()
     are supplied as individual strings in a QStringList.
 
     For example, the following code snippet runs the analog clock
-    example in the Motif style on X11 platforms by passing strings
-    containing "-style" and "motif" as two items in the list of
+    example in the Fusion style on X11 platforms by passing strings
+    containing "-style" and "fusion" as two items in the list of
     arguments:
 
     \snippet qprocess/qprocess-simpleexecution.cpp 0