Use quotes, not angle brackets, for wtap-int.h and file_wrappers.h.

This is consistent with what the rest of the files do, and doesn't
require that the compiler explicitly be told to treat the current
directory as an include directory.

Change-Id: Iefaedd2acc936f45d5095546f8dea7167d2e88c8
Reviewed-on: https://code.wireshark.org/review/14797
Reviewed-by: Guy Harris <guy@alum.mit.edu>

wiretap/camins.c

@@ -60,8 +60,8 @@
 #include "config.h"
 
 #include <string.h>
-#include <wtap-int.h>
-#include <file_wrappers.h>
+#include "wtap-int.h"
+#include "file_wrappers.h"
 
 #include "camins.h"