qfilelog - log messages to a single file
appends from standard input to a single named file. If
is sent the HUP
signal, it syncs, closes, and re-opens
the output file.
Exits 0 when it successfully reaches end-of-file on standard input. Otherwise it
exits 1 after printing an error diagnostic to standard error.
If any of the write operations fail, qfilelog
prints a warning to
standard error and pauses for 60 seconds.