Corrected a missing pointer to integer cast in code that was

added fairly recently when getting rid of crashes related to
commands operating on non-edit cells.  The lack of a cast was
prevening compilation on systems with more rigorous error
checking.

VERSION

@@ -1 +1 @@
-8.3.489
+8.3.490

commands/CmdTZ.c

@@ -981,7 +981,7 @@ CmdWhat(w, cmd)
     if (EditCellUse == NULL)
     {
 	editNull = TRUE;
-	EditCellUse = w->w_surfaceID;
+	EditCellUse = (CellUse *)w->w_surfaceID;
     }
 
     /* Find all the selected paint and print out the layer names. */