Clean up some more nits related to initialization on Win9x platforms.
Clean up some more nits related to initialization on Win9x platforms.

Suggested by: Max Bowsher <maxb@ukf.net>

* subversion/subversion/libsvn_subr/cmdline.c
  (svn_cmdline_init): Implement better error checking when obtaining the
  module path under Win9x.  Also optimized away the calls to lstrlen().

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