Small cleanups to Process
Small cleanups to Process

 - Use the second argument to Process instead of `cd` in the command
 - Concat strings in a nicer way using sprintf

silverstripe/deploynaut,shoaibali/deploynaut,silverstripe/deploynaut,awangga/deploynaut,awangga/deploynaut,awangga/deploynaut,silverstripe/deploynaut,silverstripe/deploynaut,antons-/deploynaut,antons-/deploynaut,madmatt/deploynaut,jakedaleweb/deploynaut,shoaibali/deploynaut,madmatt/deploynaut,shoaibali/deploynaut,jakedaleweb/deploynaut,antons-/deploynaut,jakedaleweb/deploynaut,awangga/deploynaut,jakedaleweb/deploynaut,shoaibali/deploynaut,madmatt/deploynaut,antons-/deploynaut,madmatt/deploynaut