MXS-2197 Rename all module include files from .h to .hh

server/modules/authenticator/GSSAPI/GSSAPIAuth/gssapi_auth.cc

@@ -25,7 +25,7 @@
 #include <maxscale/sqlite3.h>
 #include <maxscale/users.h>
 
-#include "../gssapi_auth.h"
+#include "../gssapi_auth.hh"
 
 /**
  * MySQL queries for retrieving the list of users

server/modules/authenticator/GSSAPI/GSSAPIBackendAuth/gssapi_backend_auth.cc

@@ -20,7 +20,7 @@
 #include <maxscale/protocol/mysql.hh>
 #include <maxscale/server.hh>
 
-#include "../gssapi_auth.h"
+#include "../gssapi_auth.hh"
 
 /**
  * @file gssapi_backend_auth.c - GSSAPI backend authenticator

server/modules/authenticator/GSSAPI/gssapi_auth.hh

@@ -1,6 +1,4 @@
 #pragma once
-#ifndef _GSSAPI_AUTH_H
-#define _GSSAPI_AUTH_H
 /*
  * Copyright (c) 2016 MariaDB Corporation Ab
  *
@@ -51,5 +49,3 @@ typedef struct gssapi_auth
 void report_error(OM_uint32 major, OM_uint32 minor);
 
 MXS_END_DECLS
-
-#endif

server/modules/authenticator/GSSAPI/gssapi_auth_common.cc

@@ -11,7 +11,7 @@
  * Public License.
  */
 
-#include "gssapi_auth.h"
+#include "gssapi_auth.hh"
 #include <maxscale/alloc.h>
 
 /**