Utils: Suppress progress bar when "Suppress command logging" is enabled

Change-Id: I6c94352f0c816920c4b97801da050bf14ea7be66
Reviewed-by: Tobias Hunger <tobias.hunger@qt.io>

src/libs/utils/shellcommand.cpp

@@ -215,6 +215,7 @@ void ShellCommand::execute()
 
     QFuture<void> task = Utils::runAsync(&ShellCommand::run, this);
     d->m_watcher.setFuture(task);
+    if (!(d->m_flags & SuppressCommandLogging))
         addTask(task);
 }