* fhandler.h (fhandler_base): Remove obsolete _rpos and _rsize elements.

* fhandler.cc (fhandler_base::open): Ditto.
* fhandler.cc (fhandler_base::fhandler_base): Ditto.
(fhandler_base::read): Ditto.  Add more debugging output.  Don't issue a \r
when \r\n detected.
* pipe.cc (make_pipe): Streamline slightly.  Make debug output more
interesting.
* strace.cc (strace::vsprintf): Use __progname where appropriate to distinguish
strace output when exec'ing.

winsup/cygwin/fhandler.h

@@ -129,9 +129,6 @@ private:
   int access_;
   HANDLE io_handle;
 
-  int rpos_; /* Used in text reading */
-  int rsize_;
-
   unsigned long namehash_;	/* hashed filename, used as inode num */
 
   /* Full unix path name of this file */