Emphasize that ->word is *not* the same as ->argv[i], where i is the index of
the current word.
/** Structure passed as input to the completers. */
struct i9e_completion_info {
char *buffer; /**< The full line. */
- char *word; /**< The word the cursor is in. */
+ char *word; /**< The (partial) word the cursor is in. */
int point; /**< Cursor position. */
char **argv; /**< Vector of words in \a buffer. */
int argc; /**< Number of elements(words) in argv. */