Documentation: rerere's rr-cache auto-creation and rerere.enabled

The description of rerere.enabled left the user in the dark as to who
might create an rr-cache directory.  Add a note that simply invoking
rerere does this.

Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/Documentation/config.txt b/Documentation/config.txt
index 18ab1ae65e5ff74073941e3a3d8d62891250629f..27b57d226bc15e6246875fe5a8ae00df533c1c9d 100644 (file)
--- a/Documentation/config.txt
+++ b/Documentation/config.txt
@@ -1703,7 +1703,8 @@ rerere.enabled::
        conflict hunks can be resolved automatically, should they be
        encountered again.  By default, linkgit:git-rerere[1] is
        enabled if there is an `rr-cache` directory under the
-       `$GIT_DIR`.
+       `$GIT_DIR`, e.g. if "rerere" was previously used in the
+       repository.
 
 sendemail.identity::
        A configuration identity. When given, causes values in the