Try to avoid confusion between list items in a tuple, the tuple itself, and sub-tuples within a tuple.
Try to avoid confusion between list items in a tuple, the tuple
itself, and sub-tuples within a tuple.

* subversion/libsvn_ra_svn/marshal.c
  (vparse_tuple): Rename the "list" argument to "items" to better
   reflect that it is a list of svn_ra_svn_item_t *'s, and
   differentiate it from list items within itself (e.g. items with
   format specifier 'l').  Rename local variable "list_level" to
   "nesting_level".

Review by: malcolm

jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion