checkSpace.pl: Allow 'bool' before a space and an open-paren

We need this so we can declare function pointers returning bool
without upsetting our style checker. :/

scripts/maint/checkSpace.pl

@@ -177,7 +177,7 @@ for my $fn (@ARGV) {
                     $1 ne "elsif" and $1 ne "WINAPI" and $2 ne "WINAPI" and
                     $1 ne "void" and $1 ne "__attribute__" and $1 ne "op" and
                     $1 ne "size_t" and $1 ne "double" and $1 ne "uint64_t" and
-                    $1 ne "workqueue_reply_t") {
+                    $1 ne "workqueue_reply_t" and $1 ne "bool") {
                     msg "     fn ():$fn:$.\n";
                 }
             }