t/t7003-filter-branch.sh: use the $( ... ) construct for command substitution

diff --git a/t/t5510-fetch.sh b/t/t5510-fetch.sh
index 0ba9db08847255d28e3e185d18b68703fb0755dc..47e68a597cfb5a99a236915845eb8627e47204a5 100755 (executable)
--- a/t/t5510-fetch.sh
+++ b/t/t5510-fetch.sh
@@ -7,7 +7,7 @@ test_description='Per branch config variables affects "git fetch".
 
 . ./test-lib.sh
 
-D=`pwd`
+D=$(pwd)
 
 test_bundle_object_count () {
        git verify-pack -v "$1" >verify.out &&
@@ -64,8 +64,8 @@ test_expect_success "fetch test" '
        cd two &&
        git fetch &&
        test -f .git/refs/heads/one &&
-       mine=`git rev-parse refs/heads/one` &&
-       his=`cd ../one && git rev-parse refs/heads/master` &&
+       mine=$(git rev-parse refs/heads/one) &&
+       his=$(cd ../one && git rev-parse refs/heads/master) &&
        test "z$mine" = "z$his"
 '
 
@@ -75,8 +75,8 @@ test_expect_success "fetch test for-merge" '
        git fetch &&
        test -f .git/refs/heads/two &&
        test -f .git/refs/heads/one &&
-       master_in_two=`cd ../two && git rev-parse master` &&
-       one_in_two=`cd ../two && git rev-parse one` &&
+       master_in_two=$(cd ../two && git rev-parse master) &&
+       one_in_two=$(cd ../two && git rev-parse one) &&
        {
                echo "$one_in_two       "
                echo "$master_in_two    not-for-merge"