#9 adds -t <interval> option

[Leon Kos]

Log files for batch processing can grow to enormous
sizes if progress report is not throtled from builtin
one second interval to some sanity interval (minute or so).

This patch adds -t <interval> option to btget, to
change interval from one second to <interval> delay
between reports.

Example of usage for one minute report interval in
shell script:

#!/bin/sh
nohup nice btget -t 59 "$@" 2>>current_error.log
>>current.log &

[Leon Kos]

btget.c patch for -t option