test-lib.sh: A command dying due to a signal is an unexpected failure.

When test_expect_failure detects that a command failed, it still has to
treat a program that crashed from a signal as unexpected failure.

Signed-off-by: Johannes Sixt <johannes.sixt@telecom.at>
Signed-off-by: Junio C Hamano <junkio@cox.net>

t/test-lib.sh

@@ -129,7 +129,7 @@ test_expect_failure () {
 	error "bug in the test script: not 2 parameters to test-expect-failure"
 	say >&3 "expecting failure: $2"
 	test_run_ "$2"
-	if [ "$?" = 0 -a "$eval_ret" != 0 ]
+	if [ "$?" = 0 -a "$eval_ret" != 0 -a "$eval_ret" -lt 129 ]
 	then
 		test_ok_ "$1"
 	else