Add casts to get rid of compiler warning about signed/unsigned issues.
-rw-r--r-- 17987 COPYING
-rw-r--r-- 1085 COPYRIGHT
-rw-r--r-- 147 README
drwxr-xr-x - contrib
drwxr-xr-x - doc
drwxr-xr-x - man
drwxr-xr-x - obsolete
drwxr-xr-x - src