Fix Google Analytics typo in printing Account Number, fixes #7549

[sambolek]

Once Account Number is entered in Google Analytics part of Magento admin, there's a bug in printing it out on frontend - apostrophe sign that wraps the GTM ID is missing.

Description

Apostrophe is added during GTM print, which fixes this issue.

Fixed Issues (if relevant)

1. Google API Tracking code missing single quote after account number #7549

Manual testing scenarios

1. Enable Google Analytics and set Account Number in Magento Analytics module via administration http://prntscr.com/eqwf6m
2. Observe that GTM ID is missing apostrophe sign after it, which wraps the value http://prntscr.com/eqwfrl

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)

[PieterCappelle]

Is this PR only in 2.2 or also in 2.1 and 2.0?

[sambolek]

This seems to be broken only in develop branch, typo got introduced with this commit ed86a75 , so 2.1 and 2.0 should work okay.

The fix is only for develop branch.

[PieterCappelle]

Thanks for feedback @sambolek! Oef :-)

[magento-team]

@sambolek thank you for your contribution