Fix wrong logic in test introduced in ceb67c42.

11 jobs for master in 85 minutes and 51 seconds (queued for 11 seconds)
Name Stage Failure
failed
test_matlab Test
Uploading artifacts...
Runtime platform
arch=amd64 os=linux pid=355380 revision=e0218c92 version=14.3.2
tests/**/*.m.log: found 616 matching files and directories

tests/**/*.m.trs: found 616 matching files and directories

tests/**/*.jnl: found 1 matching files and directories

tests/run_test_matlab_output.txt: found 1 matching files and directories

Uploading artifacts as "archive" to coordinator... ok
id=35271 responseStatus=201 Created token=yuM7ZBuR
Cleaning up project directory and file based variables
ERROR: Job failed: exit status 1