move HMODULE m declaration to top

src/win_delay_load_hook.c

@@ -16,14 +16,15 @@
 #include <string.h>
 
 static FARPROC WINAPI load_exe_hook(unsigned int event, DelayLoadInfo* info) {
+  HMODULE m;
   if (event != dliNotePreLoadLibrary)
     return NULL;
 
   if (_stricmp(info->szDll, "iojs.exe") != 0 &&
       _stricmp(info->szDll, "node.exe") != 0)
     return NULL;
 
-  HMODULE m = GetModuleHandle(NULL);
+  m = GetModuleHandle(NULL);
   return (FARPROC) m;
 }