Show usage string for 'git http-push -h'
http-push already knows how to dump usage if it is given no options, but it interprets '-h' as the URL to a remote repository: $ git http-push -h error: Cannot access URL -h/, return code 6 Dump usage instead. Humans wanting to pass the URL -h/ to curl for some reason can use 'git http-push -h/' explicitly. Scripts expecting to access an HTTP repository at URL '-h' will break, though. Also delay finding a git directory until after option parsing, so "http-push -h" can be used outside any git repository. Signed-off-by: NJonathan Nieder <jrnieder@gmail.com> Acked-by: NTay Ray Chuan <rctay89@gmail.com> Signed-off-by: NJunio C Hamano <gitster@pobox.com>
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