Add regression test for '-V' command line option (requires r236346).

tools/regression/usr.bin/make/variables/opt_V/Makefile

@@ -0,0 +1,15 @@
+# $FreeBSD$
+#
+# Test the -V option
+#
+
+FOO=	foo
+FOOBAR=	${FOO}bar
+
+test1:
+	@echo "-V FOOBAR"
+	@${MAKE} -V FOOBAR
+
+test2:
+	@echo '-V "$${FOOBAR}"'
+	@${MAKE} -V '$${FOOBAR}'

tools/regression/usr.bin/make/variables/opt_V/expected.status.1

@@ -0,0 +1 @@
+0

tools/regression/usr.bin/make/variables/opt_V/expected.status.2

@@ -0,0 +1 @@
+0

tools/regression/usr.bin/make/variables/opt_V/expected.stdout.1

@@ -0,0 +1,2 @@
+-V FOOBAR
+foobar

tools/regression/usr.bin/make/variables/opt_V/expected.stdout.2

@@ -0,0 +1,2 @@
+-V "${FOOBAR}"
+foobar

tools/regression/usr.bin/make/variables/opt_V/test.t

@@ -0,0 +1,14 @@
+#!/bin/sh
+
+# $FreeBSD$
+
+cd `dirname $0`
+. ../../common.sh
+
+# Description
+DESC="Variable expansion using command line '-V'"
+
+# Run
+TEST_N=2
+
+eval_cmd $*