Log Message:
Fix from Robert Elz in PR 18664 to stop sortm coredumping when there's
a numerical subject.

"And yes, this really does add a preprocessor conditional that makes
either one of two original statements get compiled, and the other
omitted (ie:  the patch is correct, though just deleting a line would
work as well).  The "#if 0" could become "#if 1" and the \ 
core dump
would also be gone, though the results of the sort would then
sometimes be rather hard to explain..."

Bump PKGREVISION.