Improve argument sanity checks.
tree2df0f9917be4daab05f03ab61124fe7c23b5c7a6
-rw-r--r-- 11 .gitignore
-rw-r--r-- 6810 API_CHANGES
-rw-r--r-- 245 INTERNAL_CHANGES
-rw-r--r-- 4268 Makefile
-rw-r--r-- 1048 README
drwxr-xr-x - doc
drwxr-xr-x - regex_src
drwxr-xr-x - sljit_src
drwxr-xr-x - test_src