[PATCH 020/144] t1003-read-tree-prefix.sh: use the $( ... ) construct for command substitution

The Git CodingGuidelines prefer the $( ... ) construct for command
substitution instead of using the back-quotes, or grave accents (`..`).

The backquoted form is the historical method for command substitution,
and is supported by POSIX. However,all but the simplest uses become
complicated quickly. In particular,embedded command substitutions
and/or the use of double quotes require careful escaping with the backslash
character. Because of this the POSIX shell adopted the $(…) feature from
the Korn shell.

Signed-off-by: Elia Pinto <redacted>
---
 t/t1003-read-tree-prefix.sh |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/t/t1003-read-tree-prefix.sh b/t/t1003-read-tree-prefix.sh
index 8c6d67e..b6111cd 100755
--- a/t/t1003-read-tree-prefix.sh
+++ b/t/t1003-read-tree-prefix.sh

@@ -11,7 +11,7 @@ test_description='git read-tree --prefix test.
 test_expect_success setup '
 	echo hello >one &&
 	git update-index --add one &&
-	tree=`git write-tree` &&
+	tree=$(git write-tree) &&
 	echo tree is $tree
 '
 

-- 
1.7.10.4