Simplify error msg, because parser does not print it anyway, and improve junkentry
Simplify error msg, because parser does not print it anyway, and improve junkentry

l20n/l20n.js,projectfluent/fluent.js,stasm/l20n.js,zbraniecki/fluent.js,zbraniecki/fluent.js,projectfluent/fluent.js,zbraniecki/l20n.js,projectfluent/fluent.js