no more used.
* lib/groupmem.c: Limit the scope of variable i.
* lib/shadow.c: Avoid implicit conversion of pointers and integers
to booleans.
* lib/shadow.c: Added brackets.
* libmisc/limits.c: Limit the scope of variable tmpmask.
* libmisc/copydir.c: Close opened file on failure.
* libmisc/loginprompt.c: Limit the scope of variable envc.
* libmisc/find_new_uid.c, libmisc/find_new_gid.c: Limit the scope
of variable id.
Files with no license use the default 3-clauses BSD license. The copyright
were mostly not recorded; they were updated according to the Changelog.
"Julianne Frances Haugh and contributors" changed to "copyright holders
and contributors".
