Log Message:
-----------
Clean up anything left lying around by vpath, abort if anything unrecognised is found by CVS.
This is an attempt to ensure as far as reasonably possible that we are running from a pristine repo.
There have been too many cases where we see dirty repos causing problems.
Modified Files:
--------------
client-code:
run_build.pl (r1.48 -> r1.49)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgbuildfarm/client-code/run_build.pl.diff?r1=1.48&r2=1.49)