t9107-git-svn-migrate.sh: use the $( ... ) construct for command substitution

diff --git a/t/t9107-git-svn-migrate.sh b/t/t9107-git-svn-migrate.sh
index 6e69fc4c65aeb77b1a4d784c7842762090ae6787..906019803797b01a4b447858d7766486bba951aa 100755 (executable)
--- a/t/t9107-git-svn-migrate.sh
+++ b/t/t9107-git-svn-migrate.sh
@@ -24,10 +24,10 @@ test_expect_success 'setup old-looking metadata' '
        git update-ref -d refs/${remotes_git_svn} refs/${remotes_git_svn}
        '
 
-head=`git rev-parse --verify refs/heads/git-svn-HEAD^0`
+head=$(git rev-parse --verify refs/heads/git-svn-HEAD^0)
 test_expect_success 'git-svn-HEAD is a real HEAD' "test -n '$head'"
 
-svnrepo_escaped=`echo $svnrepo | sed 's/ /%20/'`
+svnrepo_escaped=$(echo $svnrepo | sed 's/ /%20/')
 
 test_expect_success 'initialize old-style (v0) git svn layout' '
        mkdir -p "$GIT_DIR"/git-svn/info "$GIT_DIR"/svn/info &&
@@ -38,7 +38,7 @@ test_expect_success 'initialize old-style (v0) git svn layout' '
        git rev-parse --verify refs/${remotes_git_svn}^0 &&
        git rev-parse --verify refs/remotes/svn^0 &&
        test "$(git config --get svn-remote.svn.url)" = "$svnrepo_escaped" &&
-       test `git config --get svn-remote.svn.fetch` = \
+       test $(git config --get svn-remote.svn.fetch) = \
              ":refs/${remotes_git_svn}"
        '
 
@@ -46,10 +46,10 @@ test_expect_success 'initialize a multi-repository repo' '
        git svn init "$svnrepo" -T trunk -t tags -b branches &&
        git config --get-all svn-remote.svn.fetch > fetch.out &&
        grep "^trunk:refs/remotes/origin/trunk$" fetch.out &&
-       test -n "`git config --get svn-remote.svn.branches \
-                   "^branches/\*:refs/remotes/origin/\*$"`" &&
-       test -n "`git config --get svn-remote.svn.tags \
-                   "^tags/\*:refs/remotes/origin/tags/\*$"`" &&
+       test -n "$(git config --get svn-remote.svn.branches \
+                   "^branches/\*:refs/remotes/origin/\*$")" &&
+       test -n "$(git config --get svn-remote.svn.tags \
+                   "^tags/\*:refs/remotes/origin/tags/\*$")" &&
        git config --unset svn-remote.svn.branches \
                                "^branches/\*:refs/remotes/origin/\*$" &&
        git config --unset svn-remote.svn.tags \
@@ -75,28 +75,28 @@ test_expect_success 'multi-fetch works on partial urls + paths' "
        for i in trunk a b tags/0.1 tags/0.2 tags/0.3; do
                git rev-parse --verify refs/remotes/origin/\$i^0 >> refs.out || exit 1;
            done &&
-       test -z \"\`sort < refs.out | uniq -d\`\" &&
+       test -z \"\$(sort < refs.out | uniq -d)\" &&
        for i in trunk a b tags/0.1 tags/0.2 tags/0.3; do
          for j in trunk a b tags/0.1 tags/0.2 tags/0.3; do
                if test \$j != \$i; then continue; fi
-           test -z \"\`git diff refs/remotes/origin/\$i \
-                                refs/remotes/origin/\$j\`\" ||exit 1; done; done
+           test -z \"\$(git diff refs/remotes/origin/\$i \
+                                refs/remotes/origin/\$j)\" ||exit 1; done; done
        "
 
 test_expect_success 'migrate --minimize on old inited layout' '
        git config --unset-all svn-remote.svn.fetch &&
        git config --unset-all svn-remote.svn.url &&
        rm -rf "$GIT_DIR"/svn &&
-       for i in `cat fetch.out`; do
-               path=`expr $i : "\([^:]*\):.*$"`
-               ref=`expr $i : "[^:]*:\(refs/remotes/.*\)$"`
+       for i in $(cat fetch.out); do
+               path=$(expr $i : "\([^:]*\):.*$")
+               ref=$(expr $i : "[^:]*:\(refs/remotes/.*\)$")
                if test -z "$ref"; then continue; fi
                if test -n "$path"; then path="/$path"; fi
                ( mkdir -p "$GIT_DIR"/svn/$ref/info/ &&
                echo "$svnrepo"$path > "$GIT_DIR"/svn/$ref/info/url ) || exit 1;
        done &&
        git svn migrate --minimize &&
-       test -z "`git config -l | grep "^svn-remote\.git-svn\."`" &&
+       test -z "$(git config -l | grep "^svn-remote\.git-svn\.")" &&
        git config --get-all svn-remote.svn.fetch > fetch.out &&
        grep "^trunk:refs/remotes/origin/trunk$" fetch.out &&
        grep "^branches/a:refs/remotes/origin/a$" fetch.out &&