$NetBSD

Fix "abuff not big enough".

(It is ironic that this isn't fixed in pkgsrc already, because
pkgsrc puts heirloom-doctools in a directory with a very long
path name.)

--- refer/glue3.c.orig	2021-07-04 01:54:12.754175543 +0200
+++ refer/glue3.c
@@ -74,7 +74,7 @@ corout(char *in, char *out, char *rprog, char *arg, int outlen)
 	return 0;
 }
 
-# define ALEN 50
+# define ALEN 100
 
 int
 callhunt(char *in, char *out, char *arg, int outlen)