24.2 Translation
| ISO Standard: | “How a diagnostic is identified (3.10, 5.1.1.3).” | 
| Implementation: | All output to stderr is a
                     diagnostic. | 
| ISO Standard: | “Whether each nonempty sequence of white-space characters other than new-line is retained or replaced by one space character in translation phase 3 (5.1.1.2).” | 
| Implementation: | Each sequence of whitespace is replaced by a single character. | 
