Bug in compress 4.1

[Geraldo Veiga]

I am having a problem with the new version of compress just posted to
comp.sources.misc.

If I try the following:

zcat junk.junk  (a compressed file without .Z)

When I interrupt the execution before completion, "junk.junk" is
deleted.  "zcat" works as expected if the file terminates with a ".Z".

I am running ISC 2.2 (SVR3), and compress was compiled with gcc with the
switches in the distribution Makefile.