Merge pull request #4193 from larsiusprime/patch-1

Update Printer.hx

std/haxe/xml/Printer.hx

@@ -103,7 +103,7 @@ class Printer {
 
 	inline function newline() {
 		if (pretty) {
-			output.add("");
+			output.add("\n");
 		}
 	}
 
@@ -121,4 +121,4 @@ class Printer {
 		}
 		return false;
 	}
-}
+}