regex.h: Replace 8 spaces in indentation with a tab.

regex.h: Replace 8 spaces in indentation with a tab.

2013-08-22  Tim Shen  <timshen91@gmail.com>

	* include/bits/regex.h: Replace 8 spaces in indentation with a tab.
	* include/bits/regex_automaton.h: Same.
	* include/bits/regex_automaton.tcc: Same.
	* include/bits/regex_compiler.h: Same.
	* include/bits/regex_compiler.tcc: Same.
	* include/bits/regex_constants.h: Same.
	* include/bits/regex_executor.h: Same.
	* include/bits/regex_executor.tcc: Same.

From-SVN: r201916