bug#70638: [PATCH] doc: Put test-driver option args in separate words, not joined with `='

Hi Mark,

    >     ... correct the
    >     documentation and usage messages to describe it accurately, with a
    >     historical note in the manual explaining the long-standing error 

I finally had a chance to apply this patch. Thank you for your careful
work! I just tweaked a few words in the log message and added one more
sentence in the doc explicitly saying arguments and options were
separated by whitespace. Closing the bug. --thanks again, karl.