Bug#844484: Warning: slow font initialization + graph not displayed in the window

[Vincent Lefevre]

Control: found -1 5.2.5+dfsg1-1

Another issue is that the warning message doesn't end with a newline
character.

-- 
Vincent Lefèvre <vincent at vinc17.net> - Web: <https://www.vinc17.net/>
100% accessible validated (X)HTML - Blog: <https://www.vinc17.net/blog/>
Work: CR INRIA - computer arithmetic / AriC project (LIP, ENS-Lyon)