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> In 6b7093064a ("t3200: test for specific errors", 2020-06-15), we learned to
> grep stderr to ensure that the failing `git branch` invocations fail for the right
> reason. In two of these tests, we grep for "File exists", expecting the string
> to show up there since config.c calls `error_errno()`, which ends up including
> `strerror(errno)` in the error message.
>
> But as we saw in 4605a73073 ("t1091: don't grep for `strerror()` string",
> 2020-03-08), there exists at least one implementation where `strerror()`
> yields a slightly different string than the one we're grepping for. In particular,
> these tests fail on the NonStop platform.
>
> Similar to 4605a73073, grep for the beginning of the string instead to avoid
> relying on `strerror()` behavior.
>
> Reported-by: Randall S. Becker <rsbecker@nexbridge.com>
> Signed-off-by: Martin Ågren <martin.agren@gmail.com>
> ---
> Hi Randall,
>
> Does this fix the test for you?
>
> Martin
>
> t/t3200-branch.sh | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/t/t3200-branch.sh b/t/t3200-branch.sh index
> b6aa04bbec..4c0734157b 100755
> --- a/t/t3200-branch.sh
> +++ b/t/t3200-branch.sh
> @@ -870,7 +870,7 @@ test_expect_success '--set-upstream-to fails on
> locked config' '
> >.git/config.lock &&
> git branch locked &&
> test_must_fail git branch --set-upstream-to locked 2>err &&
> - test_i18ngrep "could not lock config file .git/config: File exists" err
> + test_i18ngrep "could not lock config file .git/config" err
> '
>
> test_expect_success 'use --set-upstream-to modify HEAD' '
> @@ -901,7 +901,7 @@ test_expect_success '--unset-upstream should fail if
> config is locked' '
> git branch --set-upstream-to locked &&
> >.git/config.lock &&
> test_must_fail git branch --unset-upstream 2>err &&
> - test_i18ngrep "could not lock config file .git/config: File exists" err
> + test_i18ngrep "could not lock config file .git/config" err
> '
>
> test_expect_success 'test --unset-upstream on HEAD' 'Randall S. Becker <rsbecker@nexbridge.com>