Log Message:
-----------
test for existence of inst before trying to rename it. bug reported by Jim Nasby.
Modified Files:
--------------
client-code:
run_build.pl (r1.46 -> r1.47)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgbuildfarm/client-code/run_build.pl.diff?r1=1.46&r2=1.47)