Classnames have trailing whitespace when spread is used

[andris-silis]

Example:
JSX:

<div styleName="classA classB" {...someProps} />

Output:

<div className="classA classB " />

No trailing whitespace is added when spread is not used.

Seems like a small issue, but it breaks snapshots or className checks in tests when upgrading.

[gajus]

Sees like a good first PR.

[giorgosavgeris]

Any update on this?

[Lchemist]

Sees like a good first PR.

Hi Gajus, is there any update on this issue?