strftime: import from gnulib
authorPaul Eggert <eggert@cs.ucla.edu>
Sun, 30 Jan 2011 23:35:29 +0000 (15:35 -0800)
committerPaul Eggert <eggert@cs.ucla.edu>
Sun, 30 Jan 2011 23:35:29 +0000 (15:35 -0800)

Trivial merge