* uinfo.cc (pwdgrp::fetch_account_from_windows): Allow fetching of
	NT SERVICE accounts by name.  Always prepend domain to NT SERVICE
	accounts.  Add U-domain\username string to pw_gecos for predefined
	builtin accounts as well.
	* net.cc (fdsock): Change default values for socket buffers on 32 bit
	to fix performance on 10Gb networks.
	* libc/sys/rtems/sys/syslimits.h (NGROUPS_MAX): Adjust value so
	that NGROUPS is even.
	* libc/stdio/nano-vfprintf_i.c (_printf_i): Use LONGINT when void* is
	larger than an int.
	* init.cc (dll_entry): Call _my_tls.remove with INFINITE wait period
	to avoid SEGVs and subsequent hangs in _cygtls::find_tls.
	* miscfuncs.cc (thread_wrapper): Ditto.
Merge branch 'Cygwin' into develop