Update models/repo/license.go

Signed-off-by: wxiaoguang <[email protected]>

Author: wxiaoguang

models/repo/license.go

@@ -27,10 +27,7 @@ type RepoLicense struct { //revive:disable-line:exported
 type RepoLicenseList []*RepoLicense //revive:disable-line:exported
 
 func (rll RepoLicenseList) StringList() []string {
-	if len(rll) == 0 {
-		return nil
-	}
-	licenses := make([]string, 0, len(rll))
+	var licenses []string
 	for _, rl := range rll {
 		licenses = append(licenses, rl.License)
 	}