nl_tokens: Filter process . env . FOO to process . env . strider_foo for rc s benefit
pl_tokens: function filterEnv ( env , defaults ) { var res = { } ; for ( var k in env ) { if ( defaults [ k . toLowerCase ( ) ] !== undefined ) { res [ ` ${ k . toLowerCase ( ) } ` ] = env [ k ] ; } else { res [ k ] = env [ k ] ; } } return <mask> ; }