coverity#1078484 Unchecked return value

Change-Id: Ia9ce3d94aa5b825e0b7ba28240f00733332e606c

sw/source/filter/ww8/ww8par5.cxx

@@ -2331,7 +2331,7 @@ eF_ResT SwWW8ImplReader::Read_F_IncludeText( WW8FieldDesc* /*pF*/, OUString& rSt
                 break;
             case '*':
                 //Skip over MERGEFORMAT
-                aReadParam.SkipToNextToken();
+                (void)aReadParam.SkipToNextToken();
                 break;
         }
     }