Special flags

The list input has several flags that change its behavior. The first, and most important is the ``-F'' flag, which is how it gets its list of strings to offer to the user. This will be explained in its own section. The other flag that it excepts is ``-E'', which allows the user to enter a string other than one that is in the list. If run this way, it behaves much like a combination of the normal list input, and the single line input combined.