Properly exit on `/etc/init.d/riak status` command
Properly exit on `/etc/init.d/riak status` command

When running `/etc/init.d/riak status`, if the status fails
(Riak isn't running) not only should a message print out
that states that fact, but also the exit status should be non-zero.

This change addresses issue basho/riak#232 for RPM packages.

GabrielNicolasAvellaneda/riak,DavidAlphaFox/riak,amyvmiwei/riak,authbox-lib/riak,laurenrother/riak,biddyweb/riak,basho/riak,yangchengjian/riak,elkingtonmcb/riak,xuejianhai/riak,glickbot/riak