Re: [PATCH] t9350: redirect input to only fast-import

A number of tests in "t9350-fast-export.sh" are using sub-shells to
redirect content to a number of commands instead of only
`git fast-import`.

This is confusing and possibly error-prone, so let's change those tests
so that no sub-shell is used and the content goes only to
`git fast-import`.

Reported-by: Elijah Newren <redacted>
Signed-off-by: Christian Couder <redacted>
---

This addresses some leftover work discussed in:

https://lore.kernel.org/git/CABPp-BHM5afgiUf7GsTPWmrf_tm6mWnvHWMKiZPxApJzN-U8gg@mail.gmail.com/ (local)


t/t9350-fast-export.sh | 215 +++++++++++++++++------------------------
 1 file changed, 91 insertions(+), 124 deletions(-)

diff --git a/t/t9350-fast-export.sh b/t/t9350-fast-export.sh
index 46700dbc40..8f85c69d62 100755
--- a/t/t9350-fast-export.sh
+++ b/t/t9350-fast-export.sh

@@ -48,12 +48,11 @@ test_expect_success 'fast-export | fast-import' '
 	mkdir new &&
 	git --git-dir=new/.git init &&
 	git fast-export --all >actual &&
-	(cd new &&
-	 git fast-import &&
-	 test $MAIN = $(git rev-parse --verify refs/heads/main) &&
-	 test $REIN = $(git rev-parse --verify refs/tags/rein) &&
-	 test $WER = $(git rev-parse --verify refs/heads/wer) &&
-	 test $MUSS = $(git rev-parse --verify refs/tags/muss)) <actual
+	git -C new fast-import <actual &&
+	test $MAIN = $(git -C new rev-parse --verify refs/heads/main) &&
+	test $REIN = $(git -C new rev-parse --verify refs/tags/rein) &&
+	test $WER = $(git -C new rev-parse --verify refs/heads/wer) &&
+	test $MUSS = $(git -C new rev-parse --verify refs/tags/muss)