Comment # 9 on bug 1045898 from Wolfgang Bauer

(In reply to Marco Antonio Flores from comment #8)
> I do not consider it being an invalid bug as the file was not manually
> changed, but indeed it just stopped working after one aaa_base update around
> mid-june (there's been several updates since then), so probably it was
> either an eventuality or an already fixed (maybe even without knowing it)
> issue.

You might not have changed it intentionally manually, but "something" obviously
did.

aaa_base hasn't been changed at all, so it definitely was not a problem there
that has been fixed.

And I highly doubt that this change e.g. comes from an openSUSE package at all:
 #
 # End of /etc/profile
 #
+PT7HOME=/home/alpvonkri/Apps/Linux/PacketTracer/PacketTracer70/
+export PT7HOME

Whatever.
Glad to hear that it works again. ;-)