kernel-doc: allow more whitespace in macros

Allow macros that are annotated with kernel-doc to contain whitespace
between the '#' and "define".  It's valid and being used, so allow it.
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

scripts/kernel-doc

@@ -1648,7 +1648,7 @@ sub dump_function($$) {
     $prototype =~ s/^noinline +//;
     $prototype =~ s/__devinit +//;
     $prototype =~ s/__init +//;
-    $prototype =~ s/^#define\s+//; #ak added
+    $prototype =~ s/^#\s*define\s+//; #ak added
     $prototype =~ s/__attribute__\s*\(\([a-z,]*\)\)//;
 
     # Yes, this truly is vile.  We are looking for:
@@ -1764,13 +1764,13 @@ sub process_state3_function($$) {
 
     $x =~ s@\/\/.*$@@gos; # strip C99-style comments to end of line
 
-    if ($x =~ m#\s*/\*\s+MACDOC\s*#io || ($x =~ /^#/ && $x !~ /^#define/)) {
+    if ($x =~ m#\s*/\*\s+MACDOC\s*#io || ($x =~ /^#/ && $x !~ /^#\s*define/)) {
 	# do nothing
     }
     elsif ($x =~ /([^\{]*)/) {
 	$prototype .= $1;
     }
-    if (($x =~ /\{/) || ($x =~ /\#define/) || ($x =~ /;/)) {
+    if (($x =~ /\{/) || ($x =~ /\#\s*define/) || ($x =~ /;/)) {
 	$prototype =~ s@/\*.*?\*/@@gos;	# strip comments.
 	$prototype =~ s@[\r\n]+@ @gos; # strip newlines/cr's.
 	$prototype =~ s@^\s+@@gos; # strip leading spaces