only the first attribute in <wbr> has whitespace #713
Description
<!-- non-compressed -->
<wbr data-a="a" data-b="b">
<!-- compressed by v2.1.3 -->
<wbrdata-a="a"data-b="b">
<!-- compressed by v3.0.2 -->
<wbr data-a="a"data-b="b">
<!-- i hope -->
<wbr data-a="a" data-b="b">