Remove double check of fd value.

The output.text.fd value is only ever -1 when there is a failure.
There is no need to check both < 0 or -1, so only check for -1.

Test: Unit tests pass.
Test: Verified the message is seen on intercept and not on
Test: regular crashes.
Change-Id: I1eddcd5d2342b268ceb261b246c98b10cee85bb4