Make sure unrecognized CLI command message is printed #29863

Job	Run time
Cancel Previous Runs	3s
Engine (GraalVM CE) (linux, amd64)	29m 18s
Engine (GraalVM CE) (macos, amd64)	45m 6s
Engine (GraalVM CE) (windows, amd64)	21m 20s
JVM Tests (GraalVM CE) (linux, amd64)	30m 3s
JVM Tests (GraalVM CE) (macos, amd64)	52m 51s
JVM Tests (GraalVM CE) (windows, amd64)	47m 21s
Standard Library Tests (GraalVM CE) (linux, amd64)	31m 53s
Standard Library Tests (GraalVM CE) (macos, amd64)	37m 6s
Standard Library Tests (GraalVM CE) (windows, amd64)	23m 27s
Verify License Packages (linux, amd64)	1m 21s
	5h 19m 49s

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