gpg-interface: add new config to select how to sign a commit

diff --git a/Documentation/config.txt b/Documentation/config.txt
index ab641bf5a9984b7ab2dfea787a0db5704f79a448..ac373e3f4806e00efe48b743542f840d16804b40 100644 (file)
--- a/Documentation/config.txt
+++ b/Documentation/config.txt
@@ -1162,7 +1162,8 @@ color.diff.<slot>::
 color.decorate.<slot>::
        Use customized color for 'git log --decorate' output.  `<slot>` is one
        of `branch`, `remoteBranch`, `tag`, `stash` or `HEAD` for local
-       branches, remote-tracking branches, tags, stash and HEAD, respectively.
+       branches, remote-tracking branches, tags, stash and HEAD, respectively
+       and `grafted` for grafted commits.
 
 color.grep::
        When set to `always`, always highlight matches.  When `false` (or
@@ -1827,6 +1828,10 @@ gpg.program::
        signed, and the program is expected to send the result to its
        standard output.
 
+gpg.format::
+       Specifies which key format to use when signing with `--gpg-sign`.
+       Default is "openpgp", that is also the only supported value.
+
 gui.commitMsgWidth::
        Defines how wide the commit message window is in the
        linkgit:git-gui[1]. "75" is the default.