* cygcheck.cc (cygwin_dll_path): New global variable.

	* cygcheck.cc (cygwin_dll_path): New global variable.
	(load_cygwin): Fetch cygwin DLL path and store in cygwin_dll_path.
	* strace.cc: Full ditto.
	* path.cc (read_mounts): First use the path stored in cygwin_dll_path,
	if available.  Then fall back to fetching own path.  Add comment.
	Drop printing warnings since they look funny in strace output.