parseopt: add OPT_NEGBIT
Add OPTION_NEGBIT and OPT_NEGBIT, mirroring OPTION_BIT and OPT_BIT. OPT_NEGBIT can be used together with OPT_BIT to define two options that cancel each other out. Note: this patch removes the reminder from the test script because it adds a test for --no-or4 and there already was one for --or4. Signed-off-by: NRene Scharfe <rene.scharfe@lsrfire.ath.cx> Signed-off-by: NJunio C Hamano <gitster@pobox.com>
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