Fix typo in comment describing free_map_allocate().
-rw-r--r-- 1274 AUTHORS
-rw-r--r-- 2708 LICENSE
-rw-r--r-- 244 Makefile
drwxr-xr-x - doc
drwxr-xr-x - specs
drwxr-xr-x - src
drwxr-xr-x - tests