Investigate flaky test test-process-argv-0

[joaocgreis]

Examples of failures:

• centos5-32

[Trott]

Another example:

• centos5-64

[Trott]

When this test dies, it seems to have something to do with a problem communicating from child to parent using stderr. The first line sent using console.error() makes it to the parent but the second one does not and then (for whatever reason, but I'm guessing totally related) stdout similarly just hangs.

Since the console.error() stuff is purely there for debugging purposes, I'm guessing the test can be made robust by simply removing the writes/reads to/from stderr.

If there is a (CentOS-specific?) problem around stderr or something similar, that's a bug that deserves its own test and fix. But it's not a bug with process.argv so I'm comfortable removing it here.

I'll go ahead and do that in a while if no one swoops in with an objection (or no one beats me to it).

[Trott]

Fixed in 972a57c