Bug#995678: ghostscript: pdfwrite no longer preserves the ToUnicode CMap of PDF files

[Vincent Lefevre]

Control: forcemerge 995392 995678

Since this bug was reassigned back to ghostscript, let's merge it
with the original bug.

-- 
Vincent Lefèvre <vinc...@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)