host.conf.5: ffix + tfix

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>

man5/host.conf.5

@@ -44,8 +44,9 @@ resolver library will automatically trim the given domain name from the
 end of any hostname resolved via DNS.
 This is intended for use with
 local hosts and domains.
-(Related note: trim will not affect hostnames
-gathered via NIS or the hosts file.
+(Related note:
+.I trim
+will not affect hostnames gathered via NIS or the hosts file.
 Care should be taken to
 ensure that the first hostname for each entry in the hosts file is
 fully qualified or unqualified, as appropriate for the local
@@ -127,7 +128,7 @@ A new command
 and a new environment variable
 .B RESOLV_SPOOF_CHECK
 can take arguments like
-.IR off ", " nowarn " and " warn .
+.IR off ", " nowarn ", and " warn .
 Line comments can appear anywhere and not only at the beginning of a line.
 .SS Historical
 The
@@ -143,7 +144,9 @@ Valid methods are
 .IR bind ", " hosts ", and " nis .
 .TP
 .B RESOLV_SERV_ORDER
-Overrides the order command.
+Overrides the
+.I order
+command.
 .PP
 Since glibc 2.0.7, the following keywords and environment variable have
 been recognized but never implemented:
@@ -197,12 +200,12 @@ Setting this option to anything else is equal to setting it to
 .TP
 .B RESOLV_SPOOF_CHECK
 Overrides the
-.IR nospoof ", " spoofalert, " and " spoof
+.IR nospoof ", " spoofalert ", and " spoof
 commands in the same way as the
 .I spoof
 command is parsed.
 Valid values are
-.IR off ", " nowarn, " and " warn .
+.IR off ", " nowarn ", and " warn .
 .SH SEE ALSO
 .BR gethostbyname (3),
 .BR hosts (5),