Fix include guards: No _ prefix/suffix but _H suffix (as in upstream)

src/modules/whitelist/main_impl.h

@@ -4,8 +4,8 @@
  * file COPYING or http://www.opensource.org/licenses/mit-license.php.*
  **********************************************************************/
 
-#ifndef SECP256K1_MODULE_WHITELIST_MAIN
-#define SECP256K1_MODULE_WHITELIST_MAIN
+#ifndef SECP256K1_MODULE_WHITELIST_MAIN_H
+#define SECP256K1_MODULE_WHITELIST_MAIN_H
 
 #include "../../../include/secp256k1_whitelist.h"
 #include "whitelist_impl.h"

src/modules/whitelist/tests_impl.h

@@ -4,8 +4,8 @@
  * file COPYING or http://www.opensource.org/licenses/mit-license.php.*
  **********************************************************************/
 
-#ifndef SECP256K1_MODULE_WHITELIST_TESTS
-#define SECP256K1_MODULE_WHITELIST_TESTS
+#ifndef SECP256K1_MODULE_WHITELIST_TESTS_H
+#define SECP256K1_MODULE_WHITELIST_TESTS_H
 
 #include "../../../include/secp256k1_whitelist.h"
 

src/modules/whitelist/whitelist_impl.h

@@ -4,8 +4,8 @@
  * file COPYING or http://www.opensource.org/licenses/mit-license.php.*
  **********************************************************************/
 
-#ifndef _SECP256K1_WHITELIST_IMPL_H_
-#define _SECP256K1_WHITELIST_IMPL_H_
+#ifndef SECP256K1_WHITELIST_IMPL_H
+#define SECP256K1_WHITELIST_IMPL_H
 
 static int secp256k1_whitelist_hash_pubkey(secp256k1_scalar* output, secp256k1_gej* pubkey) {
     unsigned char h[32];