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* tests: Use plain sort, not bfs_sortTavian Barnes2022-03-131-6/+6
| | | | | bfs_sort existed to keep the test outputs nicely in breadth-first order. Unfortunately the implementation using awk didn't support NUL bytes.
* exec: Flush I/O streams before executing anythingTavian Barnes2022-02-111-0/+19
Otherwise output from commands may appear unexpectedly earlier than output from bfs. We use fflush(NULL) to flush all streams, which is more than GNU find does, but seems to be a useful extension.