xbps-checkvers: use --longopt=FOO in usage().
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		@@ -185,13 +185,13 @@ show_usage(const char *prog)
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"Usage: %s [OPTIONS] [FILES...]\n\n"
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" Options:\n"
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"  -h,--help			Show this helpful help-message for help.\n"
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"  -C,--config FILENAME 	Set (or override) the `xbps.conf' (which may\n"
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"  -C,--config=FILENAME 	Set (or override) the `xbps.conf' (which may\n"
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"				have automatically been detected).\n"
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"  -d,--distdir DIRECTORY	Set (or override) the path to xbps-packages\n"
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"  -d,--distdir=DIRECTORY	Set (or override) the path to xbps-packages\n"
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"				(defaults to ~/xbps-packages).\n"
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"  -i,--installed 		Check for outdated packages in rootdir, rather\n"
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"				than in the XBPS repositories.\n"
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"  -r,--rootdir DIRECTORY	Set root directory (defaults to /).\n"
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"  -r,--rootdir=DIRECTORY	Set root directory (defaults to /).\n"
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"  -s,--show-missing		List any binary packages which are not built.\n"
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"\n  [FILES...]			Extra packages to process with the outdated\n"
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"				ones (only processed if missing).\n\n",
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