Fixed Mark all forums read button text is missing an 's'

[Paul B]

The text for the new pop up for marking all forums read is missing an 's' in the button.

The button text should be "Mark all forums read".

 

[Paul B]

Damn!

That was quick

 

[Mike]

 

[Mike]

Worst bit was, I actually had that typo in there twice and I caught it once.