Use unsinged long instead of u_long.

src/include/ChangeLog

+Fri Oct  8 00:15:36 1993  Per Cederqvist  (ceder@lysator.liu.se)
+
+	* kom-types.h: Use "unsigned long" instead of "u_long".
+
+	* kom-errno.h: Don't include <sys/types.h>. Use "unsigned long"
+	instead of "u_long".
+
 Thu Aug  5 00:52:50 1993  Per Cederqvist  (ceder@lysator.liu.se)
 
 	* kom-errno.h (KOM_NOT_MARKED): New error number.