very subtle endobj bug in latest pdftex

Hi Karl, Thanh, and others.

I'm encountering a very subtle bug in pdftex v.1.40.15
from TeXLive 2014.
This seems to be the latest version available at  supelec.fr .


The attached source and image file generated a PDF that
exhibits the bug, which only shows up when you try to 
validate for recent stricter PDF versions, such as PDF/A-3.

It is exhibited as follows, whereby an object is put into the
PDF as  (near lines 3757-3763 of  graphic-test.pdf ):

>> 10 0 obj
>> <<
>> /I false
>> /K false
>> /CS /DeviceRGB
>> /S /Transparency
>> >>endobj


Note the lack of endline character before the 'endobj' keyword.

This must be due to pdftex, since in the image file
    Figure3-Asana-ai.pdf
the corresponding object appears as:

>> 636 0 obj<</I false/K false/CS/DeviceRGB/S/Transparency>>
>> endobj




Of course I found this problem with a much more complicated document
that was prepared to be validating for PDF/A-3u.

When processed using my experimental
   pdfTeX, Version 3.1415926-1.40.11+tagged-pdf 
there is no such 'endobj' problem.
But since this document doesn't actually need all the tagging
features, I tried to get it working fully also with TeXLive 2014.
The above 'endobj' error is the only thing that I could not fix,
standing in the way of full validation using Adobe's Preflight.


Cheers,

	Ross