docs/127890: socket(2) man page should explain that protocol can be 0

[Nate Eldredge]

>Number:         127890
>Category:       docs
>Synopsis:       socket(2) man page should explain that protocol can be 0
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    freebsd-doc
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          doc-bug
>Submitter-Id:   current-users
>Arrival-Date:   Sun Oct 05 23:30:05 UTC 2008
>Closed-Date:
>Last-Modified:
>Originator:     Nate Eldredge
>Release:        7.0-RELEASE-p4
>Organization:
>Environment:
FreeBSD vulcan.lan 7.0-RELEASE-p4 FreeBSD 7.0-RELEASE-p4 #13: Wed Sep  3 16:13:10 PDT 2008     nate at vulcan.lan:/usr/obj/usr/src/sys/VULCAN  amd64

>Description:
The man page for socket(2) should explain that the protocol argument can be set to 0 in the common situation where there is only one protocol for the given protocol family and type.
>How-To-Repeat:

>Fix:


>Release-Note:
>Audit-Trail:
>Unformatted: