--- src/usr.bin/checkpt/checkpt.1	2005/08/01 01:49:17	1.4
+++ src/usr.bin/checkpt/checkpt.1	2007/06/30 19:20:48	1.5
@@ -37,30 +37,34 @@
 The
 .Nm
 utility will resume the checkpointed program from the specified checkpoint
-file.  Programs can be checkpointed using ^E.
+file.
+Programs can be checkpointed using ^E.
 .Pp
 By default, only members of the wheel group can checkpoint a program.
-The group can be changed with the sysctl kern.ckptgroup.
-The checkpoint file template can be changed with the sysctl kern.ckptfile.
+The group can be changed with the sysctl
+.Va kern.ckptgroup .
+The checkpoint file template can be changed with the sysctl
+.Va kern.ckptfile .
 .Pp
-The checkpointing utility is fairly primitive.  Only programs
-operating on normal files can be properly restored.  Programs which operate
-on devices, sockets, or pipes (including piped commands) cannot be completely.
+The checkpointing utility is fairly primitive.
+Only programs operating on normal files can be properly restored.
+Programs which operate on devices, sockets, or pipes (including piped
+commands) cannot be completely.
 File descriptors 0, 1, and 2, are not saved and the restored program will
 inherit the descriptors from
-.Nm
+.Nm .
 .Pp
 Programs can actively support checkpointing by catching the
 .Dv SIGCKPT
 signal, cleaning up, and manually calling the
 .Fn sys_checkpoint
-system call.  The program can then choose whether to continue running or
-exit.  The resumed program will get a (typically) positive return value
-from
+system call.
+The program can then choose whether to continue running or exit.
+The resumed program will get a (typically) positive return value from
 .Fn sys_checkpoint
 which it can use to determine whether it just made the system call or whether
-it is being resumed from the system call.  The program can then reconstruct
-non-checkpointed elements and resume.
+it is being resumed from the system call.
+The program can then reconstruct non-checkpointed elements and resume.
 .Sh SEE ALSO
 .Xr stty 1 ,
 .Xr sys_checkpoint 2