Add a comment to the POD that the separator is only used for HTML display modes.

Author: drgrice1

macros/parsers/parserCheckboxList.pl

@@ -137,7 +137,8 @@ =head1 DESCRIPTION
 
 =item C<S<< separator => string >>>
 
-Specifies the text to put between the checkboxes.  Default: $BR
+Specifies the text to put between the checkboxes. Note that this is only used in
+HTML display modes, and is ignored for PTX and TeX display modes.  Default: $BR
 
 =item C<S<< checked => choice >>>
 

macros/parsers/parserRadioButtons.pl

@@ -140,7 +140,9 @@ =head1 DESCRIPTION
 
 =item C<S<< separator => string >>>
 
-Specifies the text to put between the radio buttons.  Default: $BR
+Specifies the text to put between the radio buttons. Note that this is only used
+in HTML display modes, and is ignored for PTX and TeX display modes.
+Default: $BR
 
 =item C<S<< checked => choice >>>