Files
scryer-prolog/src/lib
Markus Triska dcc4b91b35 ENHANCED: flush output for impure I/O (format/[2,3], portray_clause/1 etc.)
Without this, we do not get a (timely) prompt in cases like:

    ?- format("press a key: ", []), get_single_char(C).

whereas for example write/1 already works in such cases:

    ?- write('press a key: '), get_single_char(C).
    press a key:
2020-07-25 09:49:02 +02:00
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