* lisp/gnus/message.el: Fix NNTP sending, broken by e51adfbd

(message-check-news-header-syntax): `message--check-continuation-headers`
signals an error instead of returning nil on error.
1 job for master in 53 minutes and 15 seconds (queued for 3 seconds)
Status Job ID Name Coverage
  Test
failed #2167
test-all

00:53:15

 
Name Stage Failure
failed
test-all Test
Makefile:318: recipe for target 'check-doit' failed
make[2]: *** [check-doit] Error 1
make[2]: Leaving directory '/builds/emacs/emacs/test'
Makefile:293: recipe for target 'check-expensive' failed
make[1]: *** [check-expensive] Error 2
make[1]: Leaving directory '/builds/emacs/emacs/test'
make: *** [check-expensive] Error 2
Makefile:957: recipe for target 'check-expensive' failed
ERROR: Job failed: exit code 1