bug 838485 - ScriptFactory get_script_repo_revision assumes 'hg' is in PATH. r=armenzg

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extra : rebase_source : 6d9ca0212a09c54f7402fb783a1dffa795abad4f
bug 838485 - retry ScriptFactory clobber. r=armenzg

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extra : rebase_source : 6f2cc54e72456ccb636009ebf60f68461e16acbf