opkg: fix usage to reflect change in the upgrade command

SVN-Revision: 20531

package/opkg/patches/009-remove-upgrade-all.patch

@@ -27,3 +27,14 @@
       {"list", 0, (opkg_cmd_fun_t)opkg_list_cmd, PFM_SOURCE},
       {"list_installed", 0, (opkg_cmd_fun_t)opkg_list_installed_cmd, PFM_SOURCE},
       {"list-installed", 0, (opkg_cmd_fun_t)opkg_list_installed_cmd, PFM_SOURCE},
+--- a/src/opkg-cl.c
++++ b/src/opkg-cl.c
+@@ -187,7 +187,7 @@ usage()
+ 
+ 	printf("\nPackage Manipulation:\n");
+ 	printf("\tupdate			Update list of available packages\n");
+-	printf("\tupgrade			Upgrade installed packages\n");
++	printf("\tupgrade <pkgs>		Upgrade package(s)\n");
+ 	printf("\tinstall <pkgs>		Install package(s)\n");
+ 	printf("\tconfigure <pkgs>	Configure unpacked package(s)\n");
+ 	printf("\tremove <pkgs|regexp>	Remove package(s)\n");