* subversion/include/svn_subst.h   (svn_subst_read_specialfile, svn_subst_create_specialfile): Update doc     strings to explain why and when these will in fact read or write a     regular file.
* subversion/include/svn_subst.h
  (svn_subst_read_specialfile, svn_subst_create_specialfile): Update doc
    strings to explain why and when these will in fact read or write a
    regular file.

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