Log Message:-----------
don't run cvs status on empty list of files.
Modified Files:-------------- client-code: run_build.pl (r1.15 -> r1.16) (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgbuildfarm/client-code/run_build.pl.diff?r1=1.15&r2=1.16)