Fix typo: "glag" -> "flag" (dotnet#3576)

VladimirReshetnikov · mairaw · commit 4013fdf65285 · 2019-12-02T22:02:21.000-05:00
diff --git a/xml/System.Threading.Tasks.Sources/ValueTaskSourceOnCompletedFlags.xml b/xml/System.Threading.Tasks.Sources/ValueTaskSourceOnCompletedFlags.xml
@@ -116,7 +116,7 @@ This value is passed from a <xref:System.Threading.Tasks.ValueTask> to the <xref
       <Docs>
         <summary>
           <see langword="OnCompleted" /> should capture the current scheduling context (the <see cref="T:System.Threading.SynchronizationContext" />)
-            and use it when queueing the continuation for execution.  If this glag is not set, the implementation
+            and use it when queueing the continuation for execution.  If this flag is not set, the implementation
             may choose to execute the continuation in an arbitrary location.</summary>
       </Docs>
     </Member>
