PR libstdc++/57226
	* doc/xml/manual/debug.xml (debug.gdb): Update documentation for
	installation and use of python printers.
	* doc/xml/manual/status_cxx2011.xml: Update.
	* doc/html/*: Regenerate.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@207288 138bc75d-0d04-0410-961f-82ee72b054a4