Reinvent deprecated qSort as Utils::sort

Change-Id: I4f6011cc2b6127037249aabc2426a88ad7108ebf
Reviewed-by: Orgad Shaneh <orgads@gmail.com>
Reviewed-by: Daniel Teske <daniel.teske@digia.com>
Reviewed-by: hjk <hjk121@nokiamail.com>

src/plugins/coreplugin/helpmanager.cpp

@@ -30,6 +30,7 @@
 #include "helpmanager.h"
 
 #include <coreplugin/icore.h>
+#include <utils/algorithm.h>
 #include <utils/filesystemwatcher.h>
 
 #include <QDateTime>
@@ -263,7 +264,7 @@ QStringList HelpManager::findKeywords(const QString &key, Qt::CaseSensitivity ca
     }
 
     QStringList keywordsSorted = keywordsToSort.toList();
-    qSort(keywordsSorted.begin(), keywordsSorted.end());
+    Utils::sort(keywordsSorted);
     return keywordsSorted + keywords.toList();
 }