Use single quotes to keep backslash literally

nobu · nobu · commit 4ac9be7f48a7 · 2023-12-06T17:27:28.000+09:00
diff --git a/test/rdoc/test_rdoc_parser_c.rb b/test/rdoc/test_rdoc_parser_c.rb
@@ -460,7 +460,7 @@ def test_do_classes_module_under
   end
 
   def test_do_constants
-    content = <<-EOF
+    content = <<-'EOF'
 #include <ruby.h>
 
 void Init_foo(){
