RFR: 8154212: launcher SEGV when _JAVA_LAUNCHER_DEBUG is set

[Kumar Srinivasan]

Hi Alan,

Adds the missing name in the launchModeNames array
purely for display/debugging purposes.

Please review:
http://cr.openjdk.java.net/~ksrini/8154212/webrev.00/

Bug:
https://bugs.openjdk.java.net/browse/JDK-8154212

Thanks
Kumar

PS: running jprt tests in parallel.