patch: fix sftp paths

[Robey Pointer]

This patch fixes absolute SFTP paths to work again after James' patch  
(removes 3 lines of old code that are no longer needed now that we're  
properly un-parsing urls), and also fixes a unicode encoding issue in  
the exclusive-open code.

robey


=== modified file 'bzrlib/transport/sftp.py'
--- bzrlib/transport/sftp.py
+++ bzrlib/transport/sftp.py
@@ -570,9 +570,6 @@
          vendor = _get_ssh_vendor()
          if (self._path is None) or (self._path == ''):
              self._path = ''
-        else:
-            # remove leading '/'
-            self._path = urllib.unquote(self._path[1:])
          if vendor != 'none':
              sock = SFTPSubprocess(self._host, self._port,  
self._username)
              self._sftp = SFTPClient(sock)
@@ -692,7 +689,7 @@
          :param relpath: The relative path, where the file should be  
opened
          """
-        path = self._abspath(relpath)
+        path = self._sftp._adjust_cwd(self._abspath(relpath))
          attr = SFTPAttributes()
          mode = (SFTP_FLAG_WRITE | SFTP_FLAG_CREATE
                  | SFTP_FLAG_TRUNC | SFTP_FLAG_EXCL)