[OSSTEST PATCH 0/4] Miscellaneous bald yaks

[Ian Jackson <ian.jackson@eu.citrix.com>]

There are two patches here to fix annoyances which can make
osstest-installed Debian guests hard to get into.

And two patches to reorganise slightly the runvar handling:
introducing a function `target_var' to replace `guest_var'.  Currently
there is no real motivation for this except that it seems tidier.

(I thought I wanted this because I thought I wanted
TestSupport::await_tcp to know whether what it was probing was a
Debian install and if so what suite.  I also have an unfinished patch
to set the target var specifying the suite, in all the places where we
do a Debian install.  But I don't now think anything needs this so I
don't intend to finish that patch.)

I have done only fairly limited testing of the latter two patches.  If
they seem like a thing we want to keep I will test them properly, at
least to discover if they seem to break anything.

Thanks,
Ian.