Merge branch 'rd/comment-typofix-in-sha1-file'

In code comment typofix * rd/comment-typofix-in-sha1-file: sha1-file.c: correct $GITDIR to $GIT_DIR in a comment

Junio C Hamano committed Jun 18, 2018 at 10:18 UTC 1bd0e6779a3d6802826d2dc7b85b0ed009790bb6

No changes.