[Chapel Merge] Add a chpldoc future

Branch: refs/heads/master
Revision: 04acdd9
Author: mppf
Log Message:

Merge pull request #16867 from mppf/add-chpldoc-future

Add a chpldoc future

Add a future for issue #16866

Test change only - not reviewed.

Modified Files:
A test/chpldoc/globals/variablepatterns.doc.bad
A test/chpldoc/globals/variablepatterns.doc.catfiles
A test/chpldoc/globals/variablepatterns.doc.chpl
A test/chpldoc/globals/variablepatterns.doc.future
A test/chpldoc/globals/variablepatterns.doc.good

Compare: https://github.com/chapel-lang/chapel/compare/6da41af8805a...04acdd9cc384