Reinstate VINUMDEBUG. Removing it also removes some diagnostic commands.

I should reconsider whether I just leave them in without #ifdef VINUMDEBUG.

sbin/vinum/Makefile

@@ -4,7 +4,7 @@ PROG=	vinum
 SRCS=	v.c list.c vinumparser.c vinumutil.c vext.h commands.c
 MAN=	vinum.8
 
-CFLAGS+=	-I${.CURDIR}/../../sys -Wall
+CFLAGS+=	-I${.CURDIR}/../../sys -Wall -DVINUMDEBUG
 
 DPADD=	${LIBREADLINE} ${LIBTERMCAP} ${LIBDEVSTAT} ${LIBKVM}
 LDADD=	-lreadline -ltermcap -ldevstat -lkvm

sbin/vinum/vext.h

@@ -43,7 +43,6 @@
 #define PLEXINITSIZE 65536				    /* init in this size chunks */
 #define MAXPLEXINITSIZE 65536				    /* max chunk size to use for init */
 #define MAXDATETEXT 128					    /* date text in history (far too much) */
-#define VINUMDEBUG					    /* for including kernel headers */
 
 enum {
     KILOBYTE = 1024,