a new function dup_shell() to replace ok_shell() and make it unconditionnally
strdup() its result to make the caller's code simplier. Change ok_shell() to
just return an integer value suitable for tests (it was used mainly for that
purpose). Do not use strdup() in the caller's code but rely on dup_shell()
that will do the job for us.
PR: bin/2442
from a script as if it was done in the interactive editor.
When reassembling the gecos string, trim any excess trailing commas, they
look ugly in the passwd file. :-)
Have a simple Makefile tweak to prevent mortal users from changing their
fullname. As ISP's we have seem some real bizzare stuff here..
When decoding the change/expire string, allow the month number as a
synonym for the name of the month.. (ie: 1 as well as Jan or January)
Note that using numbers means there's a chance that you can get bitten
if you're not used to the American DD-MM-YY order.
