Support filenames with spaces in their names (for non-Mac ftp servers).

This patch must hold the world record for living in my inbox:

  From: John Ehresman <jehresma@dsg.harvard.edu>
  Date: Wed, 23 Aug 1995 16:07:11 -0400

He provided a fix for the version that comes with Python 1.3:
ftpmirror.py revision 1.1...  And it was still relevant!

Tools/scripts/ftpmirror.py

@@ -141,8 +141,8 @@ def mirrorsubdir(f, localdir):
 				    print 'Skipping symbolic link %s -> %s' % \
 						  (words[-3], words[-1])
 				continue
-			filename = words[-1]
-			infostuff = words[-5:-1]
+			filename = string.join(words[8:])
+			infostuff = words[5:]
 			mode = words[0]
 		skip = 0
 		for pat in skippats: