Incomplete documentation: Proprietary Escape Codes / Report Cell Size

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• iTerm2 version: 3.2.6
• OS version: 10.14.2

Detailed steps to reproduce the problem:

1. Run echo -e '^[]1337;ReportCellSize^G'

What happened:

Output is 1337;ReportCellSize=12.0;6.0;2.0

What should have happened:

This outputs three numbers (12.0, 6.0, 2.0). According to the web documentation, there should have been two numbers. I assume the documentation needs to be updated.