glimpse really need this buffer to be zeroed,

or it will randomly dump core (esp. with malloc option J)

textproc/glimpse/patches/patch-agrep_bitap_c

@@ -0,0 +1,12 @@
+$OpenBSD: patch-agrep_bitap_c,v 1.1 2003/05/13 02:51:07 wilfried Exp $
+--- agrep/bitap.c.orig	Wed Nov 20 19:28:42 1996
++++ agrep/bitap.c	Mon May 12 20:33:28 2003
+@@ -534,7 +534,7 @@ alloc_buf(fd, buf, size)
+ #if	AGREP_POINTER
+ 	if (fd != -1)
+ #endif	/*AGREP_POINTER*/
+-		*buf = (char *)malloc(size);
++		*buf = (char *)calloc(1,size);
+ }
+ 
+ void