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

diff --git a/Documentation/config.txt b/Documentation/config.txt
index 1cc18a828ca63bc489726dc3f1489a5e5e5c8b2b..ac373e3f4806e00efe48b743542f840d16804b40 100644 (file)
--- a/Documentation/config.txt
+++ b/Documentation/config.txt
@@ -1828,6 +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.