Adjust the plumb rule for man pages to work with
sections like 9 1.local 1local 2g, etc.

Reference: /n/sources/patch/maybe/plumb-man-secs
Date: Thu Feb 21 15:06:19 CET 2013
Signed-off-by: nemo@lsub.org

--- /sys/lib/plumb/basic	Thu Feb 21 15:06:05 2013
+++ /sys/lib/plumb/basic	Thu Feb 21 15:06:02 2013
@@ -91,7 +91,7 @@
 
 # man index entries are synthesized
 type is text
-data matches '([a-zA-Z¡-￿0-9_\-./]+)\(([1-8])\)'
+data matches '([a-zA-Z¡-￿0-9_\-./]+)\(([1-9][0-9a-z.]*)\)'
 plumb start rc -c 'man -b '$2' '$1'
 
 # RFC references are looked up in /lib/rfc and passed to editor