2014-02-26  Tim Shen  <timshen91@gmail.com>

	* include/bits/regex.tcc (match_results<>::format,
	regex_replace<>): Update __out after calling std::copy.
	* testsuite/28_regex/algorithms/regex_replace/char/dr2213.cc:
	Add testcase.
	* testsuite/28_regex/match_results/format.cc: Likewise.

From-SVN: r208179