[tlbuild] "dvi2tty" test failure

[Karl Berry]

     > However, gzip shouldn't have been executed at all; 

For the record, I was wrong about that.  gzip should get executed (and
fail), just as you were getting:
gzip: ../../../texk/dvipsk/testdata/ 2>&1 | echo badnews > pwned.txt #.gz: unexpected end of file

The test is testing that the popen() that calls gzip properly quotes its
arguments, so that pwned.txt isn't created.  (The quoting was always
being done, the buglets were in the test scaffolding.)

Glad you brought it up.

k