This message is shown when you select one or more untracked files in the Commit dialog, right-click the selected file(s) and choose Add to ignore list from the context menu.
Once an untracked file is added to the repository’s ignore list, that file is no longer tracked by the source control system and is no longer suggested for committing.
To add the selected file(s) to the repository’s ignore list, click Yes. To cancel the operation, click No.
See Also
Commit Dialog (Git)
Commit Dialog (Mercurial)
Ignoring Certain Files And Folders
Ignoring Certain Files And Folders