Fix condition, 0 is truethy in Ruby [ci skip]

nobu · nobu · commit 9ef2153cdfc9 · 2026-04-03T13:08:06.000+09:00
diff --git a/sample/uumerge.rb b/sample/uumerge.rb
@@ -22,7 +22,7 @@
   end
 end
 
-raise "missing begin" unless $sawbegin
+raise "missing begin" unless $sawbegin > 0
 
 out.binmode
 while line = gets()
