fix: go-lint

Signed-off-by: Jianhui Zhao <zhaojh329@gmail.com>

version/version.go

@@ -7,14 +7,17 @@ var (
 	buildTime = ""
 )
 
+// Version return the version string
 func Version() string {
 	return version
 }
 
+// GitCommit return git commit on build
 func GitCommit() string {
 	return gitCommit
 }
 
+// BuildTime return build time
 func BuildTime() string {
 	return buildTime
 }