randomconfig fixes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

testsuite/unexpand.tests

@@ -3,6 +3,7 @@
 # Licensed under GPL v2, see file LICENSE for details.
 
 . ./testing.sh
+test -f "$bindir/.config" && . "$bindir/.config"
 
 # testing "test name" "options" "expected result" "file input" "stdin"
 
@@ -30,9 +31,10 @@ testing "unexpand case 7" "unexpand" \
 testing "unexpand case 8" "unexpand" \
 	"a b\n" "" "a b\n" \
 
-optional UNICODE_SUPPORT
+test x"$CONFIG_UNICODE_SUPPORT" = x"y" \
+&& test x"$CONFIG_UNICODE_USING_LOCALE" != x"y" \
+&& test "$CONFIG_LAST_SUPPORTED_WCHAR" -gt "916" \
 testing "unexpand with unicode characher 0x394" "unexpand" \
 	"1ΔΔΔ5\t99999\n" "" "1ΔΔΔ5   99999\n"
-SKIP=
 
 exit $FAILCOUNT