Include stdlib.h for exit()

usr.sbin/i4b/g711conv/g711conv.c

@@ -74,6 +74,7 @@
  *---------------------------------------------------------------------------*/
 
 #include <stdio.h>
+#include <stdlib.h>
 #include <unistd.h>
 #include <machine/i4b_ioctl.h>
 

usr.sbin/ypset/ypset.c

@@ -33,6 +33,7 @@ __FBSDID("$FreeBSD$");
 #include <err.h>
 #include <netdb.h>
 #include <stdio.h>
+#include <stdlib.h>
 #include <string.h>
 #include <unistd.h>
 #include <sys/param.h>