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ee20fc8062
Some gnu indent options take negative numbers (e.g. --indent-label). Add matching for an optional single '-' before the number. closes: #15754 Signed-off-by: John M Devin <john.m.devin@gmail.com> Signed-off-by: Doug Kearns <dougkearns@gmail.com> Signed-off-by: Christian Brabandt <cb@256bit.org>