* libc/include/stdio.h: Declare various C99 printf/scanf functions for
	C++11, too.
	* libc/include/stdio.h: Declare various C99 printf/scanf functions for
	C++11, too.
	* net.cc (cygwin_getsockopt): Rearrange code slightly and handle
	TCP_NODELAY just like SO_KEEPALIVE and SO_DONTROUTE.
	* net.cc (cygwin_getsockopt): Rearrange code slightly and handle
	TCP_NODELAY just like SO_KEEPALIVE and SO_DONTROUTE.
	* net.cc (cygwin_getsockopt): Rearrange code slightly and handle
	TCP_NODELAY just like SO_KEEPALIVE and SO_DONTROUTE.