inconsistent newlines while configuring packages?

[Justin Pryzby <justinpryzby@users.sourceforge.net>]

After doing a recent dist-upgrade, I see:


$ fg
sudo apt-get dist-upgrade

Setting up libgphoto2-2 (2.1.5-6) ...

Setting up libgphoto2-port0 (2.1.5-6) ...

Setting up libxv-dev (4.3.0.dfsg.1-13) ...
Setting up libxi-dev (4.3.0.dfsg.1-13) ...
Setting up g++-3.3 (3.3.5-13) ...
Setting up g++-3.4 (3.4.3-13) ...
Setting up gcj-3.3 (3.3.5-13) ...

Setting up libgtk2.0-0 (2.6.4-3) ...

Setting up gkrellm (2.2.5-1.3) ...

Why do some packages [re]configuration cause a newline to be
outputted, and others do not?  Is it related to the existence of a
postinst script?, and, Is it intentional?

Please Cc: me, not subscribed.
TIA,
Justin