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Most of xrandr's command line options follow the system of single dashes for single character options (e.g. "-v") and double dashes for long options ("--version"). The only exceptions are "-display" and "-help", most likely for historical reasons. To make the behavior consistent across all options, the following patch adds "--display" and "--help" as alternatives to the current inconsistency. The man page got updated as well, recommending double-dash variants for both options. The old behavior is still supported, so the patch should not break any existing usage/script. Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
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