mercurial/__main__.py

match: small tweak to PatternMatcher.visit_children_set

This makes it a bit more efficient (avoid a computation in case of early
return), and in my opinion clearer.

def run():
    from . import demandimport

    with demandimport.tracing.log('hg script'):
        demandimport.enable()
        from . import dispatch

        dispatch.run()


if __name__ == '__main__':
    run()