[mgsim] Simplify the pretty printing of network messages.
[mgsim] Simplify the pretty printing of network messages.

git-svn-id: 5df9d7b5f7c0affc7b6f3523bb99fcf0586782cc@4919 e97e5017-a994-416e-809d-76780e9f78db

Bitblade-org/mgsim,Bitblade-org/mgsim,Bitblade-org/mgsim,Bitblade-org/mgsim