Appended Closes message should be on new line automatically

Description

Autoappended Closes to end of merge request needs a new line in the beginning. When using descriptive commit messages and the commit message body is used for the body of the merge request the Closes message should appear on a line by itself.

Currently when opening the merge request there is no new line before the message so it appears as this

Which results in this

Proposal

There should be a new line before the Closes message so that this message will automatically appear on a separate line in the message and not appended to the end of the last line of the commit message.

Proposed text area

Results in this message