Bug#798799: [checks/changes-file] warn against "Close: #123456"

[Jakub Wilk]

Package: lintian
Version: 2.5.37
Severity: wishlist

"Close: #123456" is a plausible misspelling of "Closes: #123456".
It would be nice if Lintian warned against it.

--
Jakub Wilk