Valgrind: Initialize shortenTemplates-setting.

Purify reports "Uninitialized Memory Read" for shortenTemplates.

Change-Id: Ieab51cd78bf9fc7bbc539ef3158e0f57a12579d7
Reviewed-by: hjk <hjk121@nokiamail.com>
Reviewed-by: Eike Ziller <eike.ziller@digia.com>

src/plugins/valgrind/valgrindsettings.cpp

@@ -414,6 +414,7 @@ void ValgrindGlobalSettings::readSettings()
 
     defaults.insert(QLatin1String(callgrindCostFormatC), CostDelegate::FormatRelative);
     defaults.insert(QLatin1String(callgrindCycleDetectionC), true);
+    defaults.insert(QLatin1String(callgrindShortenTemplates), true);
 
     // Read stored values
     QSettings *settings = Core::ICore::settings();