[Toybox] [Patches] - Some more static analysis fixes

[Ashwini Sharma]

Hi Rob, List,

Attached are few more static analysis fixes. This includes issues like
resource leaks, logical dead codes etc...

chgrp.c: Issue is in case when CFG_FREE and verbose mode enabled. Garbage
output was there.

comm.c: loop error

id.c: single build issue for OLD_TOYs, same issue is there with some other,
e.g. __mv__

mountpoint.c : logically dead code, as __temp __ is initialized with 1

Do have a look, your inputs are welcome.

regards,
Ashwini
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