tests: fix non-portable "${var:-"str"}" construct

On both AIX 7200-00-01-1543 and FreeBSD 11.2-RELEASE-p2 the "${var:-"str"}" syntax means something different than what it does under the bash or dash shells. Both will consider the start of the new unescaped quotes to be a new argument to test_expect_success, resulting in the following error: error: bug in the test script: 'git diff-tree initial # magic is (not' does not look like a prereq Fix this by removing the redundant quotes. There's no need for them, and the resulting code works under all the aforementioned shells. This fixes a regression in c2f1d3989 ("t4013: test new output from diff --abbrev --raw", 2017-12-03) first released with Git v2.16.0. Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>

Ævar Arnfjörð Bjarmason committed Aug 28, 2018 at 19:38 UTC de231e577b6d685bd4457450af7129ddd8892269
1 file changed +1 -1
t/t4013-diff-various.sh
+1 -1
@@ -140,7 +140,7 @@ do
140 expect="$TEST_DIRECTORY/t4013/diff.$test"
141 actual="$pfx-diff.$test"
142
143 - test_expect_success "git $cmd # magic is ${magic:-"(not used)"}" '
143 + test_expect_success "git $cmd # magic is ${magic:-(not used)}" '
144 {
145 echo "$ git $cmd"
146 case "$magic" in