[RFC/PATCH] tag: make list exclude !<pattern>

Please see the following patch which filters the tag list of "!" prefaced
patterns.  If this is deemed desirable and correct, I'll resubmit with updated
documentation and unit tests.

Thanks,
Tom Grennan (1):
  tag: make list exclude !<pattern>

 builtin/tag.c |   13 +++++++++----
 1 files changed, 9 insertions(+), 4 deletions(-)

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1.7.8