Request for approval of string addition in gpdf

[Martin Kretzschmar <m_kretzschmar gmx net>]

Hello,

I'd like to apply this patch to gpdf. It fixes a crasher bug but adds a
string.

http://bugzilla.gnome.org/show_bug.cgi?id=150476

The problem with the current code can be seen in the last line of the
context in the patch: If app is NULL, reading app->name segfaults.

The same problem makes it impossible to reuse the already present format
string in the line above: If we don't have app->name, there's nothing to
use for the first %s. I can't see a way to fix this without adding a
string.

Can we add this string?

Regards,
	Martin