[Asterisk-code-review] test.c: Avoid passing -1 to FD_* family of functions. (asterisk[20])

[Sean Bright]

Attention is currently required from: Sean Bright.

Hello Joshua Colp, George Joseph, Friendly Automation, 

I'd like you to reexamine a change. Please visit

    https://gerrit.asterisk.org/c/asterisk/+/19943

to look at the new patch set (#2).

Change subject: test.c: Avoid passing -1 to FD_* family of functions.
......................................................................

test.c: Avoid passing -1 to FD_* family of functions.

This avoids buffer overflow errors when running tests that capture
output from child processes.

This also corrects a copypasta in an off-nominal error message.

Change-Id: Ib482847a3515364f14c7e7a0c0a4213851ddb10d
---
M main/test.c
1 file changed, 23 insertions(+), 4 deletions(-)


  git pull ssh://gerrit.asterisk.org:29418/asterisk refs/changes/43/19943/2
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Gerrit-Project: asterisk
Gerrit-Branch: 20
Gerrit-Change-Id: Ib482847a3515364f14c7e7a0c0a4213851ddb10d
Gerrit-Change-Number: 19943
Gerrit-PatchSet: 2
Gerrit-Owner: Sean Bright <sean at seanbright.com>
Gerrit-Reviewer: Friendly Automation
Gerrit-Reviewer: George Joseph <gjoseph at digium.com>
Gerrit-Reviewer: Joshua Colp <jcolp at sangoma.com>
Gerrit-Attention: Sean Bright <sean at seanbright.com>
Gerrit-MessageType: newpatchset
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