Meta+Games: Make clang-format-10 clean

Author: https://github.com/BenWiederhake
Commit: fa62c5595e
Pull-request: https://github.com/SerenityOS/serenity/pull/3541
Reviewed-by: https://github.com/alimpfard
Reviewed-by: https://github.com/linusg

Games/Minesweeper/Field.cpp

@@ -56,7 +56,7 @@ public:
     }
 
 private:
-    SquareButton() {}
+    SquareButton() { }
 };
 
 class SquareLabel final : public GUI::Label {