I felt a need to have the `mv` command be able to convert files to 
lowercase so I dusted off my memory of C and added the two-dozen or so 
lines necessary to do name conversion to upper or lower case.

Now,

mv -l source will convert the filename to all lower case and
mv -u source will convert the filename to all upper case.

My question is - is this a desirable upgrade and should I commit the source 
code, make a patch, expand the capability or bury it where no one will ever 
see it?