catch stuff in section 9 and 9nix

Reference: /n/atom/patch/applied/sigkern
Date: Thu May  1 18:08:27 CES 2014
Signed-off-by: quanstro@quanstro.net

--- /rc/bin/sig	Thu May  1 18:08:27 2014
+++ /rc/bin/sig	Thu May  1 18:08:27 2014
@@ -11,6 +11,8 @@
 
 for (i) {
 	files=`{grep -il '[ 	]\*?'$i'\(' /sys/man/2/*}
+	if(~ $#files 0)
+		files=`{grep -il '[ 	]\*?'$i'\(' /sys/man/9*/*}
 	for(j in $files) {
 		{echo .nr LL 20i; sed -n '/^.SH SYNOPSIS/,/^.SH.*DESCR/p'  $j } |
 			nroff -man |