-.TP
-\fBrun\fP [\fIargs\fP] [\fB<\fP \fIfilename\fP] [\fB>\fP \fIfilename\fP]
-Start executing \fIobjfile\fP, passing \fIargs\fP as command line arguments;
-\fB<\fP or \fB>\fP can be used to redirect input or output in the usual manner.
-.TP
-\fBtrace\fP [\fBin\fP \fIprocedure/function\fP] [\fBif\fP \fIcondition\fP]
-.ns
-.TP
-\fBtrace\fP \fIsource-line-number\fP [\fBif\fP \fIcondition\fP]
-.ns
-.TP
-\fBtrace\fP \fIprocedure/function\fP [\fBin\fP \fIprocedure/function\fP] [\fBif\fP \fIcondition\fP]
-.ns
-.TP
-\fBtrace\fP \fIexpression\fP \fBat\fP \fIsource-line-number\fP [\fBif\fP \fIcondition\fP]
-.ns
-.TP
-\fBtrace\fP \fIvariable\fP [\fBin\fP \fIprocedure/function\fP] [\fBif\fP \fIcondition\fP]
+.Pp
+.Bl -tag -width flag -compact
+.It Xo
+.Ic run
+.Op Ar args
+.Op Ic \&< Ar filename
+.Op Ic \&> Ar filename
+.Xc
+Start executing
+.Ar objfile ,
+passing
+.Ar args
+as command line arguments;
+.Ic \&<
+or
+.Ic \&>
+can be used to redirect input or output in the usual manner.
+.Pp
+.It Xo
+.Ic trace
+.Op Ic in Ar procedure/function
+.Op Ic if Ar condition
+.Xc
+.It Xo
+.Ic trace
+.Ar source-line-number
+.Op Ic if Ar condition
+.Xc
+.It Xo
+.Ic trace
+.Ar procedure/function
+.Op Ic in Ar procedure/function
+.Op Ic if Ar condition
+.Xc
+.It Xo
+.Ic trace
+.Ar expression Ic at Ar source-line-number
+.Op Ic if Ar condition
+.Xc
+.It Xo
+.Ic trace
+.Ar variable
+.Op Ic in Ar procedure/function
+.Op Ic if Ar condition
+.Xc