Description of problem:
triggerpostun scriptlet (using /bin/sh) -- man <= 1.5i2-0
rm -f /var/cache/man/cat[123456789n]/* 2>/dev/null || :
rm -f /var/cache/man/local/cat[123456789n]/* 2>/dev/null || :
rm -f /var/cache/man/X11R6/cat[123456789n]/* 2>/dev/null || :
rm -f /var/cache/man/whatis 2>/dev/null || :
WHATIS=`find /usr/share/man -n "whatis" 2>/dev/null`
[ -n "$WHATIS" ] && rm -f $WHATIS 2>/dev/null
exit 0

What is the 'find' bit for?  -n isn't a valid predicate!

Version-Release number of selected component (if applicable):
man-1.5m2-3