It certainly looks like a bug in the "jslint-maven-plugin" plugin.
The official JSLint docs say nomen is "true
if names should not be checked for initial or trailing underbars." You can also verify that with the options checkboxes on jslint.com.
The "jslint-maven-plugin" source code appears to have it backwards: if you search for "nomen" in the source code, you'll see they have it mapped to something called disallowDanglingUnderbarInIdentifiers
-- the inverse of what nomen
means. (I'm not entirely sure how that translates into overriding the config settings in the JS file, but it certainly seems suspicious).
It looks like you can file a bug here on the plugin, if that's any consolation.