Add explicit path to ps for Solaris
Add explicit path to ps for Solaris

Changes for FreeBSD modified the path, so now the ps in
the PATH is /usr/ucb rather than /usr/bin.

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