pldd.1: ffix

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

man1/pldd.1

@@ -70,9 +70,13 @@ Some other systems
 have a similar command.
 .SH NOTES
 The command
-
-     lsof \-p PID
-
+.PP
+.in +4n
+.EX
+lsof \-p PID
+.EE
+.in
+.PP
 also shows output that includes the dynamic shared objects
 that are linked into a process.
 
@@ -85,13 +89,13 @@ so that one can obtain similar output to
 using a command such as the following
 (to monitor the process with the specified
 .IR pid ):
+.PP
 .in +4n
-.nf
-
+.EX
 $ \fBgdb \-ex "set confirm off" \-ex "set height 0" \-ex "info shared" \\\fP
         \fB-ex "quit" \-p $pid | grep '^0x.*0x'\fP
 .fi
-.in
+.EE
 .SH BUGS
 Since glibc 2.19,
 .B pldd