Modified locale(1) to be able to show the altmon_X fields and the
[cxX]_fmt's. Also modify the "-k list" option to display only
fields with a certain prefix.
Add the comment "(FreeBSD only)" to the altmonth_x keywords
# This appears to not break X11, but I'm having problems compiling the
# glide part of the server with or without this patch, so I can't tell
# for sure.