"javac.err.invalid.arg" does not work

Tested by Kestrel "L" build

"javac.err.invalid.arg" can not be outputted.

Excuting javac with invalid argumetnt
ex.
>javac aaa

>javac: javac message file broken: key=javac.invalid.arg arguments=aaa


"javac.err.invalid.arg" is in javac resource file, but
"javac.invalid.arg" seems to be used in javac source and
it is not in resource file.