Though not required, it's a good idea to begin the commit message
with a single short (less than 50 character) line summarizing the
change, followed by a blank line and then a more thorough description.
-Tools that turn commits into email, for example, use the first line
-on the Subject: line and the rest of the commit in the body.
+The text up to the first blank line in a commit message is treated
+as the commit title, and that title is used throughout git.
+For example, linkgit:git-format-patch[1] turns a commit into email, and it uses
+the title on the Subject line and the rest of the commit in the body.
include::i18n.txt[]
and `post-commit` hooks. See linkgit:githooks[5] for more
information.
+FILES
+-----
+
+`$GIT_DIR/COMMIT_EDITMSG`::
+ This file contains the commit message of a commit in progress.
+ If `git commit` exits due to an error before creating a commit,
+ any commit message that has been provided by the user (e.g., in
+ an editor session) will be available in this file, but will be
+ overwritten by the next invocation of `git commit`.
SEE ALSO
--------