[PATCH] kernel-doc: stricter function pointer recognition

Be more careful about function pointer args:
look for "(...*" instead of just "(".

This line in include/linux/input.h fools the current kernel-doc script
into deciding that this is a function pointer:

	unsigned long ffbit[NBITS(FF_MAX)];

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>