make the code simpler

Author: lunny

modules/gitrepo/main_test.go

@@ -18,21 +18,16 @@ const (
 
 func TestMain(m *testing.M) {
 	originalRepoRootPath := setting.RepoRootPath
-	defer func() {
-		setting.RepoRootPath = originalRepoRootPath
-	}()
-	setting.RepoRootPath, _ = filepath.Abs(testReposDir)
-
 	originalHomePath := setting.Git.HomePath
-	defer func() {
-		setting.Git.HomePath = originalHomePath
-	}()
-	setting.Git.HomePath = filepath.Join(setting.RepoRootPath, ".home")
-
 	originalGitPath := setting.Git.Path
 	defer func() {
+		setting.RepoRootPath = originalRepoRootPath
+		setting.Git.HomePath = originalHomePath
 		setting.Git.Path = originalGitPath
 	}()
+
+	setting.RepoRootPath, _ = filepath.Abs(testReposDir)
+	setting.Git.HomePath = filepath.Join(setting.RepoRootPath, ".home")
 	setting.Git.Path = "git"
 
 	if err := git.InitSimple(); err != nil {