- Outline the purpose of the Stdin and Systemerr streams and how
they're used.
- Update docs for StdCopy function
- Touch-up error for unknown stream types
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
iota can be convenient for internal use for cases where the value
doesn't matter. It can be a footgun when using it to define public
values; it's easy to accidentally change values (e.g. by re-ordering
or adding a value), which may go undetected within our code because
both producer and consumer would be updated.
This patch updates these consts to have a concrete value, because it's
part of the API contract and must not be changed.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
