More changes to QLatin1String, QLatin1Char and QStringLiteral

src/ShellCommand.cpp

@@ -46,7 +46,7 @@ QString ShellCommand::fullCommand() const
             if (arg[j].isSpace())
                 hasSpace = true;
         if (hasSpace)
-            quotedArgs[i] = '\"' + arg + '\"';
+            quotedArgs[i] = QLatin1Char('\"') + arg + QLatin1Char('\"');
     }
     return quotedArgs.join(QLatin1Char(' '));
 }