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Banging data to a local port was always synchronous prior to
Erlang/OTP R16, and these modules relied on that behavior to report
that data had successfully been enqueued on the stdout port. This
would cause data to be silently dropped if the command didn't run
synchronously and the emulator halted before the port received the
data.
This was fairly rare in practice, but could be seen from time to
time on Windows with escripts that ended with a call to
io:format/2, such as the one used by the
escript_SUITE:create_and_extract test.
This is a minimal band-aid to make things reliable again. A more
complete fix would add explicit synchronization with the port.
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to increase the probablity of a nice badarg
from erlang:port_control.
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Instead of crashing, ^D now exits Erlang if started with -oldshell.
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The inline attribute has been simplified due to problems with
compiling to native code. The exact cause it beyond the scope
of this commit.
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prompt strings (io:get_line/{1,2}). io_lib is also updated to
format prompts with the 't' modifier (i.e. ~ts instead of ~s).
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