In m_clrprotoflags() cleanup the entire mbuf chain.

[glebius]

Summary

The function is designed to cleanup M_PROTO flags when mbufs cross
protocol and facility boundaries. However, now it cleans up only the
first mbuf, while intent clearly means all mbufs in a possible chain.

[rpaulo]

In the commit log, I wouldn't use the pronoun "the" but instead you could make it clear you're talking about m_clrprotoflags().

[gnn]

Looks good to me.

[adrian]

Yup, looks good to me too.

[glebius]

Closed by commit rS276136 (authored by @glebius).