Problems with commitinfo and taginfo scripts

[George Schlitz]

I had commitinfo and taginfo scripts running fine for months, but they just
started acting strangely.
When certain checks are complete, I "exit 0" for success and "exit 1" for
failure.  However, when I do a "cvs commit" now, even when "exit 0" takes
place, the commit seems to work, but I receive the error message
"cvs commit: Pre-commit check failed
cvs [commit aborted]: correct above errors first!"
Any ideas what could cause this to happen on all commits and tags now, after
it has been working for so long?
CVS version 1.11
Thanks
George