Fix a warning.
Fix a warning.

* subversion/libsvn_subr/svn_string.c
  (svn_cstring_strtoui64, svn_cstring_strtoi64): Use proper format
   specifiers while returning the error.

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