ansilove: update to 4.0.6.

ChangeLog:

AnsiLove/C 4.0.6 (2019-12-10)

- Remove extraneous sauceReadFileName() call, read from existing SAUCE record
- Use strdup() when assigning fileName and fext fallback values
- Call memset() to set all record struct fields to zero
- Free SAUCE record and comments once and for all when exiting the program

(fcambus)