Follow-up to r923389, fix a doc string and rename some variables in pursuit of code clarity.
Follow-up to r923389, fix a doc string and rename some variables in pursuit
of code clarity.

Suggested by: julianfoad

* subversion/libsvn_subr/mergeinfo.c

  (rangelist_intersect_or_remove): Fix doc string and rename local variables
   as suggested here http://svn.haxx.se/dev/archive-2010-03/0407.shtml.

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