package/Makefile: Substituted deprecated -perm +mode with -perm /mode

The find(1) -perm +mode is no longer supported and has been deprecated since
2005.

This could resolve #13855 ticket.

Signed-off-by: Rocco Folino <lordzen87@gmail.com>

SVN-Revision: 40927

package/Makefile

@@ -26,7 +26,7 @@ ifdef CONFIG_USE_MKLIBS
   define mklibs
 	rm -rf $(TMP_DIR)/mklibs-progs $(TMP_DIR)/mklibs-out
 	# first find all programs and add them to the mklibs list
-	find $(STAGING_DIR_ROOT) -type f -perm +100 -exec \
+	find $(STAGING_DIR_ROOT) -type f -perm /100 -exec \
 		file -r -N -F '' {} + | \
 		awk ' /executable.*dynamically/ { print $$1 }' > $(TMP_DIR)/mklibs-progs
 	# find all loadable objects that are not regular libraries and add them to the list as well