The body of the loop in command_close_bidi_pipe sub is identical to
what _cmd_close sub does.
Instead of duplicating, refactor _cmd_close so that it accepts a
list of file handles to be closed, which makes it usable with
command_close_bidi_pipe.
Signed-off-by: Michal Nazarewicz <mina86@mina86.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
1323dba6af