Merge: Use gnulib's dup2 module instead of rolling our own.
authorPaul Eggert <eggert@cs.ucla.edu>
Sat, 25 Jun 2011 18:39:15 +0000 (11:39 -0700)
committerPaul Eggert <eggert@cs.ucla.edu>
Sat, 25 Jun 2011 18:39:15 +0000 (11:39 -0700)

Trivial merge