XML: fix deprecation warning (#10335)

crystal-lang · Jan 30, 2021 · e260352 · e260352
1 parent 77f7f02
commit e260352
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diff --git a/spec/std/xml/xpath_spec.cr b/spec/std/xml/xpath_spec.cr
@@ -206,5 +206,10 @@ module XML
       result = doc.xpath_string("string(//feed/person[@id=$value]/@id)", variables: {"value" => 2})
       result.should eq("2")
     end
+
+    it "NodeSet#to_s" do
+      doc = doc()
+      doc.xpath("//people/person").to_s
+    end
   end
 end
diff --git a/src/xml/node_set.cr b/src/xml/node_set.cr
@@ -46,7 +46,7 @@ struct XML::NodeSet
   end
 
   def to_s(io : IO) : Nil
-    join '\n', io
+    join io, '\n'
   end
 
   def to_unsafe