[IPP] [PWG5100.13] Issue #31: Reference to "[PWG5101.2]" is actually to PWG5101.1

[smith.kennedy at hp.com]

[Issue Unconfirmed]

The reference to MSN2 is "[PWG5101.2]" but MSN2 is PWG 5101.1.  The
description of the reference accurately points to PWG 5101.1.

Change "[PWG5101.2]" to "[PWG5101.1]"

Link: http://www.pwg.org/issues/31