Comment 10 for bug 1113301

Ok, I had to change --retries to --tries ("retries" was misleading as it wasn't really the number of retries but actually the total number of tries), and enhance it thusly:

"""
=item --tries

type: array

How many times to try critical operations. If certain operations fail due
to non-fatal, recoverable errors, the tool waits and tries the operation
again. These are the operations that are retried, with their default number
of tries and wait time between tries (in seconds):

=for comment ignore-pt-internal-value
MAGIC_tries

   OPERATION TRIES WAIT
   =================== ===== ====
   create_triggers 10 1
   drop_triggers 10 1
   copy_rows 10 0.25
   swap_tables 10 1
   update_foreign_keys 10 1

To change the defaults, specify the new values like:

   --tries create_triggers:5:0.5,drop_triggers:5:0.5

That makes the tool try C<create_triggers> and C<drop_triggers> 2 times
with a 0.5 second wait between tries. So the format is:

   operation:tries:wait[,operation:tries:wait]

All three values must be specified.

...
"""