textutils.rb in review-5.9.0

- old
+ new

@@ -1,6 +1,6 @@
-# Copyright (c) 2008-2020 Minero Aoki, Kenshi Muto, Masayoshi Takahashi,
+# Copyright (c) 2008-2023 Minero Aoki, Kenshi Muto, Masayoshi Takahashi,
 #                         KADO Masanori
 #               2002-2007 Minero Aoki
 #
 # This program is free software.
 # You can distribute or modify this program under the terms of
@@ -47,10 +47,10 @@
     def add_space?(line1, line2, lang, lazy = nil)
       # https://drafts.csswg.org/css-text-3/#line-break-transform
       tail = line1[-1]
       head = line2[0]
       if tail.nil? || head.nil?
-        return nil
+        return false
       end
 
       space = true
       # rule 2
       if %i[F W H].include?(Unicode::Eaw.property(tail)) &&