subtree: t7900: use consistent formatting

The formatting in t7900-subtree.sh isn't even consistent throughout the
file.  Fix that; make it consistent throughout the file.

Signed-off-by: Luke Shumaker <lukeshu@datawire.io>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

contrib/subtree/t/t7900-subtree.sh

@@ -11,11 +11,9 @@ and split subcommands of git subtree.
 
 TEST_DIRECTORY=$(pwd)/../../../t
 export TEST_DIRECTORY
+. "$TEST_DIRECTORY"/test-lib.sh
 
-. ../../../t/test-lib.sh
-
-subtree_test_create_repo()
-{
+subtree_test_create_repo () {
 	test_create_repo "$1" &&
 	(
 		cd "$1" &&
@@ -23,26 +21,24 @@ subtree_test_create_repo()
 	)
 }
 
-create()
-{
+create () {
 	echo "$1" >"$1" &&
 	git add "$1"
 }
 
-check_equal()
-{
+check_equal () {
 	test_debug 'echo'
 	test_debug "echo \"check a:\" \"{$1}\""
 	test_debug "echo \"      b:\" \"{$2}\""
-	if [ "$1" = "$2" ]; then
+	if test "$1" = "$2"
+	then
 		return 0
 	else
 		return 1
 	fi
 }
 
-undo()
-{
+undo () {
 	git reset --hard HEAD~
 }
 
@@ -50,15 +46,18 @@ undo()
 # The original set of commits changed only one file each.
 # A multi-file change would imply that we pruned commits
 # too aggressively.
-join_commits()
-{
+join_commits () {
 	commit=
 	all=
-	while read x y; do
-		if [ -z "$x" ]; then
+	while read x y
+	do
+		if test -z "$x"
+		then
 			continue
-		elif [ "$x" = "commit:" ]; then
-			if [ -n "$commit" ]; then
+		elif test "$x" = "commit:"
+		then
+			if test -n "$commit"
+			then
 				echo "$commit $all"
 				all=
 			fi
@@ -81,8 +80,7 @@ test_create_commit() (
 	git commit -m "$commit" || error "Could not commit"
 )
 
-last_commit_message()
-{
+last_commit_message () {
 	git log --pretty=format:%s -1
 }
 
@@ -111,7 +109,8 @@ test_expect_success 'no pull from non-existent subtree' '
 		cd "$test_count" &&
 		git fetch ./"sub proj" HEAD &&
 		test_must_fail git subtree pull --prefix="sub dir" ./"sub proj" HEAD
-	)'
+	)
+'
 
 test_expect_success 'add subproj as subtree into sub dir/ with --prefix' '
 	subtree_test_create_repo "$test_count" &&
@@ -893,7 +892,8 @@ test_expect_success 'verify one file change per commit' '
 		x= &&
 		git log --pretty=format:"commit: %H" | join_commits |
 		(
-			while read commit a b; do
+			while read commit a b
+			do
 				test_debug "echo Verifying commit $commit"
 				test_debug "echo a: $a"
 				test_debug "echo b: $b"