[Groff] table column spacing

[Ruud Baart]

In a table the column with can be defined by:  w,W    Minimal  column  
width value. But there is also some space from left cell boundary to 
cell content and from the right side of the cell content to cell 
boundary. Sometimes, if the table is too full, this space between cell 
content and cell boundary is set to zero.

Can this spacing between cell content and cell boundary be controlled 
with parameters?

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Regards,

Ruud Baart