t3920: don't ignore errors of more than one command with || true

It is customary to write `A || true` to ignore a potential error exit of
command A. But when we have a sequence `A && B && C || true && D`, then
a failure of any of A, B, or C skips to D right away. This is not
intended here. Turn the command whose failure is to be ignored into a
compound command to ensure it is the only one that is allowed to fail.

Signed-off-by: Johannes Sixt <[email protected]>
Signed-off-by: Junio C Hamano <[email protected]>

Author: j6t

t/t3920-crlf-messages.sh

@@ -12,7 +12,7 @@ create_crlf_ref () {
 	cat >.crlf-orig-$branch.txt &&
 	cat .crlf-orig-$branch.txt | append_cr >.crlf-message-$branch.txt &&
 	grep 'Subject' .crlf-orig-$branch.txt | tr '\n' ' ' | sed 's/[ ]*$//' | tr -d '\n' >.crlf-subject-$branch.txt &&
-	grep 'Body' .crlf-message-$branch.txt >.crlf-body-$branch.txt || true &&
+	{ grep 'Body' .crlf-message-$branch.txt >.crlf-body-$branch.txt || true; } &&
 	LIB_CRLF_BRANCHES="${LIB_CRLF_BRANCHES} ${branch}" &&
 	test_tick &&
 	hash=$(git commit-tree HEAD^{tree} -p HEAD -F .crlf-message-${branch}.txt) &&