Issues details: add missing newline (#126)

add missing newline

Co-authored-by: 6543 <6543@obermui.de>
Reviewed-on: https://gitea.com/gitea/tea/pulls/126
Reviewed-by: techknowlogick <techknowlogick@gitea.io>
Reviewed-by: mrsdizzie <info@mrsdizzie.com>

cmd/issues.go

@@ -64,7 +64,7 @@ func runIssueDetail(ctx *cli.Context, index string) error {
 		return err
 	}
 
-	fmt.Printf("#%d %s\n%s created %s\n\n%s", issue.Index,
+	fmt.Printf("#%d %s\n%s created %s\n\n%s\n", issue.Index,
 		issue.Title,
 		issue.Poster.UserName,
 		issue.Created.Format("2006-01-02 15:04:05"),