fixed: missing return value for some command handlers

cli/commandlist.cpp

@@ -30,4 +30,6 @@ int CommandList::handle(QStringList arguments)
 	{
 		Logger::info() << result.fileData.absPath << endl;
 	}
+
+	return 0;
 }

cli/commandsearch.cpp

@@ -32,4 +32,6 @@ int CommandSearch::handle(QStringList arguments)
 	{
 		Logger::info() << result.fileData.absPath << endl;
 	}
+
+	return 0;
 }