procstat: fix printing divert(4) sockets

usr.bin/procstat/procstat.1

@@ -414,10 +414,6 @@ The following network protocols may be displayed (grouped by address family):
 .Dv IPPROTO_ICMP ;
 see
 .Xr icmp 4 .
-.It IPD
-.Dv IPPROTO_DIVERT ;
-see
-.Xr divert 4 .
 .It IP?
 unknown protocol.
 .It RAW
@@ -453,6 +449,14 @@ see
 unknown protocol.
 .El
 .Pp
+.Dv AF_DIVERT
+.Pp
+.Bl -tag -width indent -compact
+.It IPD
+.Dv Divert socket; see
+.Xr divert 4 .
+.El
+.Pp
 .Bl -tag -width indent -compact
 .It ?
 unknown address family.

usr.bin/procstat/procstat_files.c

@@ -68,8 +68,6 @@ protocol_to_string(int domain, int type, int protocol)
 			return ("RAW");
 		case IPPROTO_SCTP:
 			return ("SCT");
-		case IPPROTO_DIVERT:
-			return ("IPD");
 		default:
 			return ("IP?");
 		}
@@ -83,6 +81,9 @@ protocol_to_string(int domain, int type, int protocol)
 		default:
 			return ("UD?");
 		}
+	case AF_DIVERT:
+		return ("IPD");
+		break;
 	default:
 		return ("?");
 	}