RFE: taskopen -d <id>
-d as in description

this flag would cause taskopen to open the description of < id > using the chosen $EDITOR.

the -d option is a middle ground between "task <id> edit" (which exposes every aspect of a task to editing) and "task <id> mod new-description" (which is replaces the whole description)

Because every task has a description, wider filters might include too many tasks, so < id > might be the sole sensible argument.
