Merge from mainline.
authorPaul Eggert <eggert@cs.ucla.edu>
Sat, 5 Feb 2011 21:27:41 +0000 (13:27 -0800)
committerPaul Eggert <eggert@cs.ucla.edu>
Sat, 5 Feb 2011 21:27:41 +0000 (13:27 -0800)

Trivial merge