"sig segattach" would fail because nroff had no space
after the "*".  look for [ 	*] rather than [ 	]\*?
since nroff could have dropped any space.

Reference: /n/sources/patch/applied/signit
Date: Fri Sep 25 06:03:14 CES 2009
Signed-off-by: quanstro@quanstro.net

--- /rc/bin/sig	Fri Sep 25 06:00:57 2009
+++ /rc/bin/sig	Fri Sep 25 06:00:56 2009
@@ -22,7 +22,7 @@
 				}
 				ta
 				s/[ 	]+/ /g' |
-			grep -i -e '[ 	]\*?'$i'\(' | sed 's/^[ +]/	/'
+			grep -i -e '[ 	*]'$i'\(' | sed 's/^[ +]/	/'
 	}
 }