there is no functional difference.
#
# name getty type status comments
#
#
# name getty type status comments
#
-ttyv0 "/usr/libexec/getty Pc" pc3 on secure
+ttyv0 "/usr/libexec/getty Pc" pc3 on secure
+ttyv1 "/usr/libexec/getty Pc" cons25 off secure
+ttyv2 "/usr/libexec/getty Pc" cons25 off secure
+ttyv3 "/usr/libexec/getty Pc" cons25 off secure
tty00 "/usr/libexec/getty std.9600" unknown off secure
tty01 "/usr/libexec/getty std.9600" unknown off secure
tty02 "/usr/libexec/getty std.9600" unknown off secure
tty00 "/usr/libexec/getty std.9600" unknown off secure
tty01 "/usr/libexec/getty std.9600" unknown off secure
tty02 "/usr/libexec/getty std.9600" unknown off secure