libpcp/check-statics - expr(1) snarfoo fix up
libpcp/check-statics - expr(1) snarfoo fix up

Notices this little gem in Logs/pcp after a build on Centos 5.10

expr: warning: unportable BRE: `^.*\\.o$': using `^' as the first character
of the basic regular expression is not portable; it is being ignored

Strictly "^" is not needed for expr(1), although why warning about
it helps man or beast is beyond me.

Also added a guard for no object files while I was here.

adfernandes/pcp,mbaldessari/pcp,adfernandes/pcp,adfernandes/pcp,andyvand/cygpcpfans,wuliming/pcp,andyvand/cygpcpfans,edwardt/pcp,tjanez/pcp,mbaldessari/pcp,edwardt/pcp,prasincs/pcp,wuliming/pcp,tjanez/pcp,andyvand/cygpcpfans,edwardt/pcp,edwardt/pcp,andyvand/cygpcpfans,wuliming/pcp,aeg-aeg/pcpfans,prasincs/pcp,aeg-aeg/pcpfans,aeg-aeg/pcpfans,tjanez/pcp,aeg-aeg/pcpfans,tjanez/pcp,edwardt/pcp,andyvand/cygpcpfans,aeg-aeg/pcpfans,mbaldessari/pcp,aeg-aeg/pcpfans,aeg-aeg/pcpfans,andyvand/cygpcpfans,prasincs/pcp,tjanez/pcp,prasincs/pcp,prasincs/pcp,andyvand/cygpcpfans,adfernandes/pcp,wuliming/pcp,mbaldessari/pcp,aeg-aeg/pcpfans,tjanez/pcp,adfernandes/pcp,adfernandes/pcp,mbaldessari/pcp,adfernandes/pcp,prasincs/pcp,wuliming/pcp,tjanez/pcp,prasincs/pcp,tjanez/pcp,edwardt/pcp,edwardt/pcp,edwardt/pcp,prasincs/pcp,mbaldessari/pcp,wuliming/pcp,wuliming/pcp,wuliming/pcp,andyvand/cygpcpfans,adfernandes/pcp