t9150-svk-mergetickets.sh: use the $( ... ) construct for command substitution

diff --git a/t/t6015-rev-list-show-all-parents.sh b/t/t6015-rev-list-show-all-parents.sh
index 8b146fb432bc7a8dee8eeeb43f2b6b946d51190b..3c73c93ba6eb17db6ea91de7122b8bb7a839e795 100755 (executable)
--- a/t/t6015-rev-list-show-all-parents.sh
+++ b/t/t6015-rev-list-show-all-parents.sh
@@ -6,11 +6,11 @@ test_description='--show-all --parents does not rewrite TREESAME commits'
 
 test_expect_success 'set up --show-all --parents test' '
        test_commit one foo.txt &&
-       commit1=`git rev-list -1 HEAD` &&
+       commit1=$(git rev-list -1 HEAD) &&
        test_commit two bar.txt &&
-       commit2=`git rev-list -1 HEAD` &&
+       commit2=$(git rev-list -1 HEAD) &&
        test_commit three foo.txt &&
-       commit3=`git rev-list -1 HEAD`
+       commit3=$(git rev-list -1 HEAD)
        '
 
 test_expect_success '--parents rewrites TREESAME parents correctly' '