What:

• Fixes @media print throwing an error after upgrading from LESS 4.4.0 to 4.4.1 #4362 which is a regression introduced by an attempt to create improved and generalized function parsing. Set the no spacing flag for comma separated lists and add test.

Regression caused by #4342

Why:

This Less:

@media print, (max-width: 992px) {
  div {
    color: red;
  }
}

throws an error but should be valid.

Checklist:

• Documentation
• Added/updated unit tests
• Code complete