extra: install path fix, +x set on installed scripts

extra/CMakeLists.txt

@@ -2,6 +2,8 @@
 # scripts for RPM package
 #
 if ("${CPACK_GENERATOR}" STREQUAL "RPM")
-	install (FILES tarantool_box DESTINATION etc/init.d)
-	install (FILES tarantool_box.sh DESTINATION bin)
+	install (FILES tarantool_box DESTINATION /etc/init.d
+                 PERMISSIONS OWNER_EXECUTE)
+	install (FILES tarantool_box.sh DESTINATION bin
+                 PERMISSIONS OWNER_EXECUTE)
 endif()