(message-check-news-header-syntax): `message--check-continuation-headers`
signals an error instead of returning nil on error.
"Really post to %s unknown group%s: %s? "
(if (= (length errors) 1) "this" "these")
(if (= (length errors) 1) "" "s")
- (mapconcat 'identity errors ", ")))))))
- (message--check-continuation-headers)
+ (mapconcat #'identity errors ", ")))))))
+ (progn (message--check-continuation-headers) t)
;; Check the Newsgroups & Followup-To headers for syntax errors.
(message-check 'valid-newsgroups
(let ((case-fold-search t)