Make Subversion build with -Werror again.
Make Subversion build with -Werror again.

* subversion/libsvn_subr/path.c (svn_path_is_root): Add some 'const'
    qualifiers. It is not valid to convert a 'char **' to a 'const char **'.

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