Right-size the Intuition string-gadget buffer to BUFSZ so a caller
with a BUFSZ-sized buffer cannot be overflowed. Enlarge the
amii_yn_function prompt buffer to fit the worst-case query + resp
+ def + trailing space and switch the appends to Snprintf with
remaining-space tracking. Replace sprintf in amii_display_file's
"Can't display X: Y" path with Snprintf. In EditColor's Save path
drop the strcpy/strcat chain that could trail off the end of
oname/nname when dirname returned a near-full path; use Snprintf
instead. Rewrite dirname() to copy first and truncate the copy,
so it no longer briefly NULs the caller's string.
Ingo Paschke
15e3973ac2