[PATCH 1/7] Documentation/git-push.txt: Document when --signed may fail

[Dave Borowitz <dborowitz@google.com>]

Like --atomic, --signed will fail if the server does not advertise the
necessary capability. In addition, it requires gpg on the client side.

Signed-off-by: Dave Borowitz <dborowitz@google.com>
---
 Documentation/git-push.txt | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/Documentation/git-push.txt b/Documentation/git-push.txt
index 135d810..f8b8b8b 100644
--- a/Documentation/git-push.txt
+++ b/Documentation/git-push.txt
@@ -137,7 +137,9 @@ already exists on the remote side.
 	GPG-sign the push request to update refs on the receiving
 	side, to allow it to be checked by the hooks and/or be
 	logged.  See linkgit:git-receive-pack[1] for the details
-	on the receiving end.
+	on the receiving end.  If the `gpg` executable is not available,
+	or if the server does not support signed pushes, the push will
+	fail.
 
 --[no-]atomic::
 	Use an atomic transaction on the remote side if available.
-- 
2.5.0.276.gf5e568e