Fix similar typos to r331124.

lib/libcasper/libcasper/libcasper.3

@@ -182,7 +182,7 @@ over the given capability.
 The
 .Fn cap_xfer_nvlist
 function sends the given
-.Xr nvlist 9,
+.Xr nvlist 9 ,
 destroys it and receives new
 .Xr nvlist 9
 in response over the given capability.

lib/libcasper/services/cap_dns/cap_dns.3

@@ -24,7 +24,7 @@
 .\"
 .\" $FreeBSD$
 .\"
-.Dd February 26, 2018
+.Dd March 18, 2018
 .Dt CAP_DNS 3
 .Os
 .Sh NAME
@@ -193,7 +193,7 @@ printf("Name associated with %s is %s.\\n", ipstr, hp->h_name);
 .Xr gethostbyaddr 3 ,
 .Xr gethostbyname 3 ,
 .Xr gethostbyname2 3 ,
-.Xr getnameinfo 3,
+.Xr getnameinfo 3 ,
 .Xr capsicum 4 ,
 .Xr nv 9
 .Sh AUTHORS

lib/libcasper/services/cap_sysctl/cap_sysctl.3

@@ -129,7 +129,7 @@ cap_close(capsysctl);
 .Sh SEE ALSO
 .Xr cap_enter 2 ,
 .Xr err 3 ,
-.Xr sysctlbyname 3,
+.Xr sysctlbyname 3 ,
 .Xr capsicum 4 ,
 .Xr nv 9
 .Sh AUTHORS