open(HANDLE, "|cmd args|");
+The write filehandle will have autoflush turned on.
+
If $rdr is a string (that is, a bareword filehandle rather than a glob
or a reference) and it begins with ">&", then the child will send output
directly to that file handle. If $wtr is a string that begins with
Extremely similar to open2(), open3() spawns the given $cmd and
connects RDRFH for reading, WTRFH for writing, and ERRFH for errors. If
ERRFH is '', or the same as RDRFH, then STDOUT and STDERR of the child are
-on the same file handle.
+on the same file handle. The WTRFH will have autoflush turned on.
If WTRFH begins with "E<lt>&", then WTRFH will be closed in the parent, and
the child will read from it directly. If RDRFH or ERRFH begins with