Avoid NPE when the default branch cannot be identified

Robin Rosenberg

2013-09-01 02ede7f11c6fb28ca53fc240905cd1b140236f08

 src/main/distrib/linux/service-centos.sh

@@ -39,6 +39,7 @@
  
  force-reload|restart)
      $0 stop
      sleep 5
      $0 start
  ;;