fixup! strace.1.in: print names of entities in bold, provide man page sections

strace.1.in

@@ -788,8 +788,7 @@ This is equivalent to more generic
 \fB\-e\ inject\fR= expression with default value of
 .I errno
 option set to
-.IR ENOSYS .
-
+.BR ENOSYS .
 .TP
 .BR "\-e\ kvm" = vcpu
 Print the exit reason of kvm vcpu.  Requires Linux kernel version 4.16.0
@@ -813,10 +812,11 @@ this option to get all of the gory details.
 .BI "\-b " syscall
 If specified syscall is reached, detach from traced process.
 Currently, only
-.I execve
+.BR execve (2)
 syscall is supported.  This option is useful if you want to trace
-multi-threaded process and therefore require -f, but don't want
-to trace its (potentially very complex) children.
+multi-threaded process and therefore require
+.BR \-f ,
+but don't want to trace its (potentially very complex) children.
 .TP
 .B \-D
 Run tracer process as a detached grandchild, not as parent of the
@@ -835,16 +835,20 @@ system calls.  Note that
 .B \-p
 .I PID
 .B \-f
-will attach all threads of process PID if it is multi-threaded,
-not only thread with thread_id = PID.
+will attach all threads of process
+.I PID
+if it is multi-threaded, not only thread with
+.IR thread_id " = " PID .
 .TP
 .B \-ff
 If the
 .B \-o
 .I filename
 option is in effect, each processes trace is written to
-.I filename.pid
-where pid is the numeric process id of each process.
+.IR filename . pid
+where
+.I pid
+is the numeric process id of each process.
 This is incompatible with
 .BR \-c ,
 since no per-process counts are kept.
@@ -874,7 +878,7 @@ fatal signals are always blocked (default if
 fatal signals and
 .BR SIGTSTP " (" ^Z )
 are always blocked (useful to make
-.BI "strace -o " FILE PROG
+.BI "strace -o " "FILE PROG"
 not stop on
 .BR ^Z ).
 .RE
@@ -1098,15 +1102,19 @@ Xtensa syscall are filtered and printed as
 .LP
 On x32, syscalls that are intended to be used by 64-bit processes and not x32
 ones (for example,
-.BR readv ,
+.BR readv (2),
 that has syscall number 19 on x86_64, with its x32 counterpart has syscall
 number 515), but called with
 .B __X32_SYSCALL_BIT
-flag being set, are designated with "#64" suffix.
+flag being set, are designated with
+.B "#64"
+suffix.
 .LP
 On some platforms a process that is attached to with the
 .B \-p
-option may observe a spurious EINTR return from the current
+option may observe a spurious
+.B EINTR
+return from the current
 system call that is not restartable.  (Ideally, all system calls
 should be restarted on strace attach, making the attach invisible
 to the traced process, but a few system calls aren't.