svndumpfilter: don't use '%n' in printf strings.
svndumpfilter: don't use '%n' in printf strings.

In VS2005, Microsoft has deprecated the use of %n as 'inherently
insecure' and turning it back on requires a special function call.

Suggested by: djh
              Jonathan Gilbert <o2w9gs702@sneakemail.com>

* subversion/svndumpfilter/main.c
  (write_prop_to_stringbuf, output_revision, output_node): Use the return
    value of sprintf() to determine how many characters were written, rather
    than using '%n' at the end of the string.


git-svn-id: f8a4e5e023278da1e04e203c7fe051e3c4285d88@863568 13f79535-47bb-0310-9956-ffa450edef68

wbond/subversion,YueLinHo/Subversion,YueLinHo/Subversion,wbond/subversion,wbond/subversion,wbond/subversion,YueLinHo/Subversion,YueLinHo/Subversion,wbond/subversion,YueLinHo/Subversion,YueLinHo/Subversion,wbond/subversion,YueLinHo/Subversion,wbond/subversion,YueLinHo/Subversion