Excessive whitespace IE filter syntax

[xzyfer]

I've marked this as regression since the behaviour has changed negative (for the user) but since it's only whitespace I've assigned it 3.2.1.

.foo {
  filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(
        src="#{foo}",
        sizingMethod='scale');
}

Ruby Sass

.foo {
  filter: progid:DXImageTransform.Microsoft.AlphaImageLoader( src="foo", sizingMethod='scale'); }

Libsass 3.1.0

.foo {
  filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(
        src="foo",
        sizingMethod='scale'); }

Libsass 3.2.0-beta.5

.foo {
  filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(         src="foo",         sizingMethod='scale'); }

Spec added sass/sass-spec#330

[xzyfer]

Fixed by #1194