[css-multicol] Fixing a typo, resolves w3c#2488

Author: rachelandrew

css-multicol-1/Overview.bs

@@ -466,7 +466,7 @@ these two properties determine the outcome:-->
 Pseudo-algorithm</h3>
 
 	The pseudo-algorithm below determines the used values for
-	'column-count' (N) and 'column-width' (W) when . There is one other variable
+	'column-count' (N) and 'column-width' (W). There is one other variable
 	in the pseudo-algorithm: U is the used width of the multi-column
 	element.
 

css-multicol-1/issues-2011.txt

@@ -335,7 +335,7 @@ From:     Geoffrey Sneddon
 Summary:  Psuedo-algorithm doesn't say when
 Comment:  https://github.com/w3c/csswg-drafts/issues/2488
 Comment:  https://github.com/w3c/csswg-drafts/issues/2488#issuecomment-377432504
-Open
+Closed:   Editorial
 ----
 Issue 39.
 From:     Fantasai