Fix optional argument handling while recording builtins.
treea163bb8ff46b02470f7566c60a1c674446f2e79e
-rw-r--r-- 71 .gitignore
-rw-r--r-- 2932 COPYRIGHT
-rw-r--r-- 5429 Makefile
-rw-r--r-- 441 README
drwxr-xr-x - doc
drwxr-xr-x - dynasm
drwxr-xr-x - etc
drwxr-xr-x - src