Fixed documentation for ProgressBar

This place is using the old ProgressHelper API and can be confusing when migrating.
bug #4010 [Console] Fixed documentation for ProgressBar (VasekPurchart)

This PR was merged into the 2.5 branch.

Discussion
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[Console] Fixed documentation for ProgressBar

This place is using the old ProgressHelper API and can be confusing when migrating.

| Q             | A
| ------------- | ---
| Doc fix?      | yes
| New docs?     | no
| Applies to    | 2.5+
| Fixed tickets | no

Commits
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4bc00df Fixed documentation for ProgressBar