ephyr: fix -no-host-grab argument processing

Signed-off-by: Jürg Billeter <j@bitron.ch>
Reviewed-by: Alan Coopersmith <alan.coopersmith@oracle.com>

hw/kdrive/ephyr/ephyrinit.c

@@ -367,7 +367,7 @@ ddxProcessArgument(int argc, char **argv, int i)
     /* end Xnest compat */
     else if (!strcmp(argv[i], "-no-host-grab")) {
         EphyrWantNoHostGrab = 1;
-        return 2;
+        return 1;
     }
 
     return KdProcessArgument(argc, argv, i);