Prevent svn_path_dirname() from returning a non canonical pathname when called with a URL that does not have a path component (e.g. svn://localhost).
Prevent svn_path_dirname() from returning a non canonical pathname when called
with a URL that does not have a path component (e.g. svn://localhost).

* subversion/libsvn_subr/path.c
  (previous_segment): Skip over multiple slashes that might separate two
    segments.



git-svn-id: f8a4e5e023278da1e04e203c7fe051e3c4285d88@850805 13f79535-47bb-0310-9956-ffa450edef68

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