Additional attribute '\t'='' appears if we use multiline attributes

[Inversion-des]

There is some problem with render:

div
	p[
		id="marvin"
		class="martian"
		data-info="Illudium Q-36"
	]
	p Next line

produces
<div><p \t="" class="martian" data-info="Illudium Q-36" id="marvin"></p><p>Next line</p></div>
Attribute \t="" is wrong here.

[Inversion-des]

I use this workaround (Inversion-des@8857e41), but there should be some better solution.

[Inversion-des]

I use this workaround (Inversion-des@8857e41), but there should be some better solution.