Ian Hickson acf4b6c1aa
Clean up startProgress logic. (#19695) (#20009)
Disallow calling stop() or cancel() multiple times. This means that
when you use startProgress you have to more carefully think about what
exactly is going on.

Properly cancel startProgress in non-ANSI situations, so that
back-to-back startProgress calls all render to the console.
2018-07-30 16:58:07 -07:00
..
2018-04-26 16:06:04 -07:00

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