diff --git a/models/git_diff.go b/models/git_diff.go
index ffe9d9e81d..8c1b47ab60 100644
--- a/models/git_diff.go
+++ b/models/git_diff.go
@@ -34,7 +34,7 @@ const (
 	DiffLinePlain DiffLineType = iota + 1
 	DiffLineAdd
 	DiffLineDel
-	DIFF_LINE_SECTION
+	DiffLineSection
 )
 
 type DiffFileType uint8
@@ -43,7 +43,7 @@ const (
 	DiffFileAdd DiffFileType = iota + 1
 	DiffFileChange
 	DiffFileDel
-	DIFF_FILE_RENAME
+	DiffFileRename
 )
 
 type DiffLine struct {
@@ -273,7 +273,7 @@ func ParsePatch(maxLines, maxLineCharacteres, maxFiles int, reader io.Reader) (*
 			curSection = &DiffSection{}
 			curFile.Sections = append(curFile.Sections, curSection)
 			ss := strings.Split(line, "@@")
-			diffLine := &DiffLine{Type: DIFF_LINE_SECTION, Content: line}
+			diffLine := &DiffLine{Type: DiffLineSection, Content: line}
 			curSection.Lines = append(curSection.Lines, diffLine)
 
 			// Parse line number.
@@ -362,7 +362,7 @@ func ParsePatch(maxLines, maxLineCharacteres, maxFiles int, reader io.Reader) (*
 				case strings.HasPrefix(line, "index"):
 					curFile.Type = DiffFileChange
 				case strings.HasPrefix(line, "similarity index 100%"):
-					curFile.Type = DIFF_FILE_RENAME
+					curFile.Type = DiffFileRename
 					curFile.IsRenamed = true
 					curFile.OldName = curFile.Name
 					curFile.Name = b
diff --git a/models/repo.go b/models/repo.go
index bf34e97d09..5c5af32f4c 100644
--- a/models/repo.go
+++ b/models/repo.go
@@ -35,7 +35,7 @@ import (
 )
 
 const (
-	_TPL_UPDATE_HOOK = "#!/usr/bin/env %s\n%s update $1 $2 $3 --config='%s'\n"
+	tplUpdateHook = "#!/usr/bin/env %s\n%s update $1 $2 $3 --config='%s'\n"
 )
 
 var repoWorkingPool = sync.NewExclusivePool()
@@ -706,7 +706,7 @@ func cleanUpMigrateGitConfig(configPath string) error {
 
 func createUpdateHook(repoPath string) error {
 	return git.SetUpdateHook(repoPath,
-		fmt.Sprintf(_TPL_UPDATE_HOOK, setting.ScriptType, "\""+setting.AppPath+"\"", setting.CustomConf))
+		fmt.Sprintf(tplUpdateHook, setting.ScriptType, "\""+setting.AppPath+"\"", setting.CustomConf))
 }
 
 // Finish migrating repository and/or wiki with things that don't need to be done for mirrors.