with man-1.5p2, with the locale set to something different that LANG=C or LANG=en_* , when you request a non-existant man page you got an annoying error message :

for example , with LANG=fr_fr@euro
i got
$ man mani
Cannot open the message catalog "man" for locale "fr_FR@euro"
(NLSPATH="<none>")

No manual entry for mani

Solutions:

1- eihter patch man to disable that message
a patch like that one will do it http://slackware.at/data/slackware-10.1/source/ap/man/man.noisy.diff.gz
(I have not tested that method)

2- either include locale message for man
add at the end of the build function in the PKGBUILD

mkdir -p $startdir/pkg/usr/share/locale
cd ../msgs
make install DESTDIR=$startdir/pkg