userdiff: allow * between cpp funcname words
userdiff: allow * between cpp funcname words

The cpp pattern, used for C and C++, would not match the start of a
declaration such as

  static char *prepare_index(int argc,

because it did not allow for * anywhere between the various words that
constitute the modifiers, type and function name.  Fix it.

Signed-off-by: Thomas Rast <18f23ef7096473d837b7404952f13710423b8b63@student.ethz.ch>
Signed-off-by: Junio C Hamano <a6723cc3f76163bf7adb636a73ac3b0ceb3e6b9b@pobox.com>

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