Index: share/man/man3/CMSG_DATA.3
===================================================================
--- share/man/man3/CMSG_DATA.3
+++ share/man/man3/CMSG_DATA.3
@@ -2,7 +2,7 @@
 .\" Public domain, July 3, 2005
 .\"
 .\" $FreeBSD$
-.Dd August 19, 2018
+.Dd November 1, 2018
 .Dt CMSG_DATA 3
 .Os
 .Sh NAME
@@ -50,10 +50,10 @@
 .Fa cmsg .
 It ensures proper alignment constraints on the beginning of ancillary
 data are met.
-.It Fn CMSG_FIRSTHDR mhdr
+.It Fn CMSG_FIRSTHDR msghdr
 This routine accesses the first control message attached to the
 message
-.Fa msg .
+.Fa msghdr .
 If no control messages are attached to the message, this routine
 returns
 .Dv NULL .
@@ -67,11 +67,11 @@
 of each control message.
 This routine accounts for any alignment constraints on the beginning of
 ancillary data.
-.It Fn CMSG_NXTHDR mhdr cmsg
+.It Fn CMSG_NXTHDR msghdr cmsg
 This routine returns the location of the control message following
 .Fa cmsg
 in the message
-.Fa mhdr .
+.Fa msghdr .
 If
 .Fa cmsg
 is the last control message in the chain, this routine returns