Merge pull request #2040 from sass/rest-param-comma #1658

Job	Run time
JS API \| Pure JS \| Browser	1m 20s
JS API \| Pure JS \| Node lts/* \| ubuntu-latest	1m 23s
JS API \| Embedded \| Node lts/* \| ubuntu-latest	4m 46s
Language \| Dart Sass \| Dart stable	1m 1s
Language \| Dart Sass \| Dart dev	1m 1s
JS API \| Embedded \| Node lts/* \| windows-latest	7m 9s
JS API \| Pure JS \| Node lts/* \| windows-latest	3m 46s
JS API \| Embedded \| Node lts/* \| macos-latest	3m 45s
Lint spec files	19s
JS API \| Pure JS \| Node lts/* \| macos-latest	1m 14s
JS API \| Embedded \| Node lts/-1 \| ubuntu-latest	4m 45s
Static analysis	22s
JS API \| Pure JS \| Node lts/-1 \| ubuntu-latest	1m 13s
JS API \| Embedded \| Node lts/-2 \| ubuntu-latest	5m 5s
JS API \| Pure JS \| Node lts/-2 \| ubuntu-latest	1m 22s
Unit tests	40s
JS API \| Embedded \| Node lts/-3 \| ubuntu-latest	5m 9s
JS API \| Pure JS \| Node lts/-3 \| ubuntu-latest	1m 23s
	45m 43s

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