Merge pull request #662 from jenkinsci/GH-647

Avoid posting a comment for empty comment files

Author: bjoernhaeuser

src/main/java/org/jenkinsci/plugins/ghprb/extensions/comments/GhprbCommentFile.java

@@ -59,7 +59,11 @@ public String postBuildComment(Run<?, ?> build, TaskListener listener) {
                 if (content == null) {
                     content = FileUtils.readFileToString(new File(scriptFilePathResolved));
                 }
-                msg.append(content);
+
+                if (content.length() > 0) {
+                    msg.append(content);
+                }
+
             } catch (IOException e) {
                 msg.append("\n!!! Couldn't read commit file !!!\n");
                 listener.getLogger().println("Couldn't read comment file at " + scriptFilePathResolved);