Log Message:
Pullup ticket #6443 (second part) - requested by taca
lang/ruby: build fix

Revisions pulled up:
- lang/ruby/rubyversion.mk                                      1.231

---
   Module Name:	pkgsrc
   Committed By:	taca
   Date:		Mon Apr 12 14:39:28 UTC 2021

   Modified Files:
   	pkgsrc/lang/ruby: rubyversion.mk

   Log Message:
   lang/ruby/rubyversion.mk: require quote

   Require proper quote for previous addition to MAKEFLAGS.