use shortcut version to exit if nothing is to be done

Signed-off-by: Nico Schottelius <nico@brief.schottelius.org>

cdist/conf/type/__rvm_gem/gencode-remote

@@ -1,6 +1,7 @@
 #!/bin/sh
 #
 # 2012 Evax Software <contact@evax.fr>
+# 2012 Nico Schottelius (nico-cdist at schottelius.org)
 #
 # This file is part of cdist.
 #
@@ -25,7 +26,9 @@ gemsetname="$(echo "$gemset" | cut -d '@' -f 2)"
 state_is="$(cat "$__object/explorer/state")"
 user="$(cat "$__object/parameter/user")"
 state_should="$(cat "$__object/parameter/state")"
-if [ "$state_is" != "$state_should" ]; then
+
+[ "$state_is" = "$state_should" ] && exit 0
+
 case "$state_should" in
     present)
         cat << DONE
@@ -40,4 +43,3 @@ rvm use $gemset; gem uninstall $gem"
 DONE
     ;;
 esac
-fi