sets -> gets (#3761)

Author: mairaw

xml/Microsoft.Vsa/IVsaError.xml

@@ -154,7 +154,7 @@
         <ReturnType>System.Int32</ReturnType>
       </ReturnValue>
       <Docs>
-        <summary>Sets the severity of the error.</summary>
+        <summary>Gets the severity of the error.</summary>
         <value>An integer (0-4) that represents the error severity.</value>
         <remarks>To be added.</remarks>
       </Docs>