Rename the WITHOUT_VT_SUPPORT knob to WITHOUT_VT

The _SUPPORT knobs have a consistent meaning which differs from the
behaviour controlled by this knob.  As the knob is opt-out and has not
appeared in a release the impact should be low.

Suggested by:	imp, wblock
MFC after:	1 week

Makefile.inc1

@@ -1198,7 +1198,7 @@ _gperf=		gnu/usr.bin/gperf
 _groff=		gnu/usr.bin/groff
 .endif
 
-.if ${MK_VT_SUPPORT} != "no"
+.if ${MK_VT} != "no"
 _vtfontcvt=	usr.bin/vtfontcvt
 .endif
 

UPDATING

@@ -31,6 +31,11 @@ NOTE TO PEOPLE WHO THINK THAT FreeBSD 11.x IS SLOW:
 	disable the most expensive debugging functionality run
 	"ln -s 'abort:false,junk:false' /etc/malloc.conf".)
 
+20140629:
+	The WITHOUT_VT_SUPPORT kernel config knob has been renamed
+	WITHOUT_VT.  (The other _SUPPORT knobs have a consistent meaning
+	which differs from the behaviour controlled by this knob.)
+
 20140619:
 	Maximal length of the serial number in CTL was increased from 16 to
 	64 chars, that breaks ABI.  All CTL-related tools, such as ctladm

share/Makefile

@@ -86,7 +86,7 @@ _syscons=	syscons
 _tests=		tests
 .endif
 
-.if ${MK_VT_SUPPORT} != "no"
+.if ${MK_VT} != "no"
 _vt=		vt
 .endif
 

share/mk/src.opts.mk

@@ -149,7 +149,7 @@ __DEFAULT_YES_OPTIONS = \
     USB \
     UTMPX \
     VI \
-    VT_SUPPORT \
+    VT \
     WIRELESS \
     WPA_SUPPLICANT_EAPOL \
     ZFS \

usr.bin/Makefile

@@ -359,7 +359,7 @@ SUBDIR+=	yacc
 SUBDIR+=	vi
 .endif
 
-.if ${MK_VT_SUPPORT} != "no"
+.if ${MK_VT} != "no"
 SUBDIR+=	vtfontcvt
 .endif