Made NULL treat 'undefined' properly.
treedead7ce18ad72f9fa7f2e03b1d81efc77ad6c884
-rw-r--r-- 154 .boring
-rw-r--r-- 18 .gitignore
-rw-r--r-- 1725 COPYING
-rw-r--r-- 342 contributors
drwxr-xr-x - docs
drwxr-xr-x - extras
-rw-r--r-- 2250 parenscript.asd
drwxr-xr-x - runtime
drwxr-xr-x - src
drwxr-xr-x - t