The format changed at some point breaking our existing parsing code.
Typical example of the new format is below.

UUID:             b8604449-c7b5-4d3b-9fad-56114e8594f5
Scrub started:    Wed Oct  2 12:54:06 2019
Status:           finished
Duration:         0:00:00
\tdata_extents_scrubbed: 0
\ttree_extents_scrubbed: 16
\tdata_bytes_scrubbed: 0
\ttree_bytes_scrubbed: 262144
\tread_errors: 0
\tcsum_errors: 0
\tverify_errors: 0
\tno_csum: 0
\tcsum_discards: 0
\tsuper_errors: 0
\tmalloc_errors: 0
\tuncorrectable_errors: 0
\tunverified_errors: 0
\tcorrected_errors: 0
\tlast_physical: 253493248