#25 Help example is not helpful

[Roger Browne]

When you type "vec -help", the displayed text includes
these four lines:

1. Assembling a system.
vec /a:<esd.file> [/f] [/fe] [/pmf] [/fo] [/t]
[/pbin:<class_name>] [/prtl:<class_name>]
[/prld:<class_name>]
[/pasm:<class_name>] [/pdbi]

Note that:

1. The /f option is not supported anymore, and should
be removed from the example. The warning that is
printed when /f is used should probably be changed to
mention .xace file instead of .esd file.

2. The /pmf option does not exist, and should be
removed from the example.

3. The /pdbi option is recognized, and a description of
its purpose should be added to the help text. On my
system, /pdbi prints "Thinking ..." followed by two
identical sets of four lines of statistics.