Manual subsection to refer to other pages is SEE ALSO

Consistently say so in all caps as it is customary to do so.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
diff --git a/Documentation/git-format-patch.txt b/Documentation/git-format-patch.txt
index c60ce12..fefcd26 100644
--- a/Documentation/git-format-patch.txt
+++ b/Documentation/git-format-patch.txt
@@ -223,7 +223,7 @@
 $ git format-patch -3
 ------------
 
-See Also
+SEE ALSO
 --------
 linkgit:git-am[1], linkgit:git-send-email[1]