Remove extra word 'default' from the --verbose help, it was confusing the option parser

[sodabrew]

No description provided.

[sodabrew]

Current release version:

$ bin/pt-slave-restart --help | grep verbose
  --quiet            -q  Suppresses normal output (disables --verbose)
  --verbose          -v  Adds more information to the default output (default 1)
  --verbose              output (default 1

Note that the default value for --verbose is not an integer, which causes any code that compares $o->get('verbose') against another integer to fail when --verbose or --quiet are not specified (in other words, it fails by default).

With this fix:

$ bin/pt-slave-restart --help | grep verbose
  --quiet            -q  Suppresses normal output (disables --verbose)
  --verbose          -v  Adds more information to the output (default 1)
  --verbose              1

[percona-csalguero]

Thanks for this fix @sodabrew