Description of the desired feature

Some GMT options, like -Aa|t|s in gmt info, uses t for table, whereas option -q uses +f for file instead of +t for table. This is inconsistent. I can see we have been down this road before, e.g., parsing in gmt info -A says

case 't': case 'f': /* Keep f (file) for backwards compatibility, but "table" is used in all similar situations */

but clearly table is not used in all similar situations.

I will need to find all the places where a|f|s or a|t|s are used and standardinze. Clearly, the code will need to accept either t of f to be backwards compatible. Because we use the word table everywhere to describe the input to table-reading modules, I think we should use t and +t even though we will process f and +f as well. OK, @meghanrjones ?