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Junio C Hamano  committed 33f0ea4

t8003: check exit code of command and error message separately

Shell reports exit status only from the most downstream command
in a pipeline. In these tests, we want to make sure that the
command fails in a controlled way, and produces a correct error
message.

This issue was known by Jay who submitted the patch, and also was
pointed out by Hannes during the review process, but I forgot to
fix it up before applying. Sorry about that.

Signed-off-by: Junio C Hamano <gitster@pobox.com>

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File t/t8003-blame.sh

 '
 
 test_expect_success 'blame -L with invalid start' '
-	test_must_fail git blame -L5 tres 2>&1 | grep "has only 2 lines"
+	test_must_fail git blame -L5 tres 2>errors &&
+	grep "has only 2 lines" errors
 '
 
 test_expect_success 'blame -L with invalid end' '
-	git blame -L1,5 tres 2>&1 | grep "has only 2 lines"
+	test_must_fail git blame -L1,5 tres 2>errors &&
+	grep "has only 2 lines" errors
 '
 
 test_done