code: function execCmd(c, gcr) {
  	return shell.exec(gcr ? c.replace(regexGitCmd, gcr) : c, {
  		silent : true
  	});
  }
docs: Executes a shell command
  
  @param c
  the command to execute
  @param gcr
  the optional command replacement that will be substituted for the
  "git" CLI (when applicable)