docs: kernel-doc: fix parsing of arrays

The logic with parses array has a bug that prevents it to
parse arrays like:
	struct {
	...
		struct {
			u64 msdu[IEEE80211_NUM_TIDS + 1];
			...
	...

Fix the parser to accept it.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>

scripts/kernel-doc

@@ -1120,7 +1120,7 @@ sub dump_struct($$) {
 					# Handle bitmaps
 					$arg =~ s/:\s*\d+\s*//g;
 					# Handle arrays
-					$arg =~ s/\[\S+\]//g;
+					$arg =~ s/\[.*\]//g;
 					# The type may have multiple words,
 					# and multiple IDs can be defined, like:
 					#	const struct foo, *bar, foobar