Import lstat

Import lstat

This patch is to import lstat gnulib module.

gdb:

2014-11-28  Yao Qi  <yao@codesourcery.com>

	* gnulib/update-gnulib.sh (IMPORTED_GNULIB_MODULES): Add
	lstat.
	* gnulib/aclocal.m4: Re-generated.
	* gnulib/config.in: Re-generated.
	* gnulib/configure: Re-generated.
	* gnulib/import/Makefile.am: Re-generated.
	* gnulib/import/Makefile.in: Re-generated.
	* gnulib/import/m4/gnulib-cache.m4: Re-generated.
	* gnulib/import/m4/gnulib-comp.m4: Re-generated.
	* gnulib/import/lstat.c: New file.
	* gnulib/import/m4/lstat.m4: New file.