Function: gnus-range-add
gnus-range-add is a function alias for range-concat, defined in
range.el.gz.
This function is obsolete since 29.1; use range-concat instead.
Signature
(gnus-range-add RANGE1 RANGE2)
Documentation
Add RANGE2 to RANGE1 (nondestructively).
Aliases
gnus-range-add (obsolete since 29.1)