sdp_health_check.sh v1.7.0:
Scan the small log files that are captured, such as checkpoint.log,
and detect if they report errors. Any such errors are now included
in the Summary displayed at the end of processing.
This will prevent the summary from reporting that no errors were
detected when errors appear in the scanned SDP log files.
Note that calling 'verify_sdp.sh -online' directly by this
sdp_health_check.sh script is not required, as that is done by
the daily_checkpoint.sh (or live_checkpoint.sh) and captured in
checkpoint.log. With this change, that output (which was
already being captured) is now scanned, with errors now referred
to in the summary.