Show requested format for Phone Number

[austene]

It's frustrating when I try to enter a phone number and the error message reads "Please match the requested format." without displaying the requested format.

Error message example:

It would be helpful to display an example of the requested format such as 000-000-0000.

[keizax]

Thank you for this contribution. It has been merged into the master branch.

[Sincerelysumu]

I do have the same problem. Please help me