> what are people being exposed to that uses -single-dash-long-options? Go's 'flag' package -- although double-dash is silently accepted on the command line.

> what are people being exposed to that uses -single-dash-long-options? Go's 'flag' package -- although double-dash is silently accepted on the command line. The deeper issue with 'flag' is that it rejects the BSD convention of a short/long option pair having guaranteed equivalent semantics e.g. -h/--help. The library just won't let the programmer create such a pair by means of its standard functions.