fix for Wrong price amount on product page #11717

[HirokazuNishi]

Description

This PR fixes broken currency format for some locales.
Since Magento2.2, price in product pages were not shown as expected against integer currencies.

Fixed Issues (if relevant)

1. Wrong price amount on product page #11717: Wrong price amount on product page

Manual testing scenarios

1. Create store views for USD(or EUR) and JPY(or KRW, IDR, VND)
2. Setup currency rates
3. Create products
4. Access frontend product page
5. Price shown as expected format (ex. JPY, KRW, IDR, VND are integer currencies!)

Contribution checklist

• Pull request has a meaningful description of its purpose
• All commits are accompanied by meaningful commit messages
• All new or changed code is covered with unit/integration tests (if applicable)
• All automated tests passed successfully (all builds on Travis CI are green)

[magento-engcom-team]

@HirokazuNishi thank you for contributing. Please accept Community Contributors team invitation here to gain extended permissions for this repository.

[magento-engcom-team]

Hi @HirokazuNishi. Thank you for your contribution.
Changes from your Pull Request will be available with the upcoming 2.3.0 release.