From mboxrd@z Thu Jan  1 00:00:00 1970
From: Sitaram Chamarty <sitaramc@gmail.com>
Subject: git name-rev not accepting abbreviated SHA with --stdin
Date: Wed, 24 Jun 2015 08:59:09 +0530
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Hi all,

"git name-rev" does not accept abbreviated SHAs if --stdin is used,
though it works when the SHA is given directly on the command line:

    $ git version
    git version 2.4.3
    $ git name-rev --tags d73f544
    d73f544 tags/v3.6.3~29
    $ git name-rev --tags --stdin <<< d73f544
    d73f544

This *is* documented, but I'm curious why this distinction is made.  Is
it merely a matter of parsing or were there some other complications I
am unaware of, which forced this distinction to be made?

thanks
sitaram