will also fail if the actual call to `gpg --sign` fails. See
linkgit:git-receive-pack[1] for the details on the receiving end.
+--push-option=<string>::
+ Pass the specified string as a push option for consumption by
+ hooks on the server side. If the server doesn't support push
+ options, error out. See linkgit:git-push[1] and
+ linkgit:githooks[5] for details.
+
<host>::
A remote host to house the repository. When this
part is specified, 'git-receive-pack' is invoked via