title: Gradle disable automatic subproject execution for specific task
body: <p>I have a multi-project Gradle build and I customised the "run" task to do something a bit different in the root project. 
  However, I don't want it to call the "run" task of each sub-project after completion, as it does now. But this behaviour should only be for this task, I want every other task to be recursively executed as is the default, but the run task not. I also cannot disable the run task globally for every subproject, because it does have a purpose in each subproject when executed on its own.</p>