cpuid: ccanlint fixes.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

ccan/cpuid/BSD-MIT

-../../licenses/BSD-MIT
\ No newline at end of file

ccan/cpuid/LICENSE

+../../licenses/BSD-MIT
\ No newline at end of file

ccan/cpuid/_info

@@ -8,10 +8,11 @@
  *
  * Example:
  * #include <ccan/cpuid/cpuid.h>
+ * #include <stdio.h>
  *
- * int main()
+ * int main(void)
  * {
- * 	int highest;
+ * 	uint32_t highest;
  * 	cpuid(CPU_HIGHEST_EXTENDED_FUNCTION_SUPPORTED, &highest);
  * 	printf ("Highest extended function supported: %d\n", highest);
  *

ccan/cpuid/test/run.c

-#include "cpuid.h"
+#include "../cpuid.c"
 
 #include <stdio.h>
 #include <stdint.h>
 
-int main()
+int main(void)
 {
 	if (!cpuid_is_supported()) {
 		printf ("CPUID instruction is not supported by this CPU\n");