contrib/examples/git-remote.perl: use a lowercase "usage:" string
contrib/examples/git-remote.perl: use a lowercase "usage:" string

Make the usage string consistent with Git.

Signed-off-by: David Aguilar <9de348c050f7cd1ca590883733c4e531ce610bf4@gmail.com>
Signed-off-by: Junio C Hamano <a6723cc3f76163bf7adb636a73ac3b0ceb3e6b9b@pobox.com>

destenson/git,destenson/git,destenson/git,destenson/git,destenson/git,destenson/git,destenson/git,destenson/git