shortlog: remove "[PATCH]" prefix from shortlog output
shortlog: remove "[PATCH]" prefix from shortlog output

Originally noticed by Nicolas Pitre; the real cause was the code
was prepared to deal with [PATCH] (and [PATCH n/m whatever])
prefixes but forgot that the string can be indented while acting
as a filter.

Signed-off-by: Junio C Hamano <dc50d1021234060e53ec42a77d526afa2fe07479@cox.net>

destenson/git,destenson/git,destenson/git,destenson/git,destenson/git,destenson/git,destenson/git,destenson/git