config.txt: add an entry for log.showSignature

The configuration variable log.showSignature is mentioned in git-log's
manpage.  Document it in git-config's manpage as well.

Signed-off-by: Kyle Meyer <kyle@kyleam.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/Documentation/config.txt b/Documentation/config.txt
index e43d147825cede8fd8e1fcfb12946d4f92636d11..ef8e5b94582003890415a7cd24d0667df119f1e6 100644 (file)
--- a/Documentation/config.txt
+++ b/Documentation/config.txt
@@ -2057,6 +2057,10 @@ log.showRoot::
        Tools like linkgit:git-log[1] or linkgit:git-whatchanged[1], which
        normally hide the root commit will now show it. True by default.
 
+log.showSignature::
+       If true, makes linkgit:git-log[1], linkgit:git-show[1], and
+       linkgit:git-whatchanged[1] assume `--show-signature`.
+
 log.mailmap::
        If true, makes linkgit:git-log[1], linkgit:git-show[1], and
        linkgit:git-whatchanged[1] assume `--use-mailmap`.