gtk-builder-tool: Accept --help
authorMatthias Clasen <mclasen@redhat.com>
Sun, 31 Jan 2016 16:01:46 +0000 (11:01 -0500)
committerMatthias Clasen <mclasen@redhat.com>
Sun, 31 Jan 2016 16:02:53 +0000 (11:02 -0500)
commit836bd6540863d036981ae545ae37f99d3b71e088
treea2dae8fa76e099c7642b1f8d1c63c4e26fd2f820
parentf793da54a992d87da42c1f98e3cd5e9556c670ab
gtk-builder-tool: Accept --help

Saying 'Failed to open file '--help' is not polite or smart.
Catch this case and show usage information.
gtk/gtk-builder-tool.c