Format Description for NETSERV(nnn)

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                                                    (1)   
>>-+-NETSRV--+--+-nn-+----------+-----------------+------------->
   +-NETSERV-+  |    '---+-mm-+-'                 |       
   '-NSV-----'  |        '-*--'                   |       
                |   .-,-----------------------.   |       
                |   V                         |   |       
                '-(-----+-nn-+-+----------+---+-)-'       
                        '-*--' '---+-mm-+-'               
                                   '-*--'                 

>--+---------------------------------+-------------------------->
   '-| Selection limiting keywords |-'   

>--+---------------------------+-------------------------------><
   '-| Modification keywords |-'   

Modification keywords

|--+-------------------------------------------------+---------->
   |             .-NO--.                             |   
   '-,RESTART=-+-+-YES-+---------------------------+-'   
               '-(--+-YES-+--+----------------+--)-'     
                    '-NO--'  |   .-0--------. |          
                             '-,-+-interval-+-'          

>--+----------------+--+--------------+--+-----------------+---->
   '-,SOCKet=socket-'  '-,STACK=stack-'  |         .-No--. |   
                                         '-,START=-+-Yes-+-'   

>--+------------------------------------------------------------------------------------------+--|
   |                    .-,---------------------------------------------------------------.   |   
   |          .-No--.   V                                                                 |   |   
   '-TRaceio=-+-Yes-+-(---Common-+-=--+-+-No--+-JES-+-=--+-+-No--+-Verbose-+-=--+-+-No--+-+-)-'   
                                 '-^=-' '-Yes-'     '-^=-' '-Yes-'         '-^=-' '-Yes-'         

Selection limiting keywords

|--+---------------------------------------------------------+-->
   '-,---/---RESTART-+-=--+-+-+-YES-+----------------------+-'   
                     '-^=-' | '-NO--'                      |     
                            '-(--+-YES-+--+-----------+--)-'     
                                 '-NO--'  '-,interval-'          

>--+----------------------------+------------------------------->
   '-,---/---STACK-+-=--+-stack-'   
                   +-^=-+           
                   +->--+           
                   '-<--'           

>--+------------------------------+----------------------------->
   '-,---/---START-+-=--+-+-----+-'   
                   '-^=-' +-No--+     
                          '-Yes-'     

>--+------------------------------------------------------------------------------------------+--|
   |                    .-,---------------------------------------------------------------.   |   
   |          .-No--.   V                                                                 |   |   
   '-TRaceio=-+-Yes-+-(---Common-+-=--+-+-No--+-JES-+-=--+-+-No--+-Verbose-+-=--+-+-No--+-+-)-'   
                                 '-^=-' '-Yes-'     '-^=-' '-Yes-'         '-^=-' '-Yes-'         

Notes:
  1. Omit the comma between initialization statement and first keyword