regsvr32: Use correct exit code when LoadLibraryEx fails.

programs/regsvr32/regsvr32.c

@@ -107,7 +107,7 @@ static VOID *LoadProc(const WCHAR* strDll, const char* procName, HMODULE* DllHan
     if(!*DllHandle)
     {
         output_write(STRING_DLL_LOAD_FAILED, strDll);
-        ExitProcess(1);
+        ExitProcess(LOADLIBRARY_FAILED);
     }
     proc = (VOID *) GetProcAddress(*DllHandle, procName);
     if(!proc)

programs/regsvr32/regsvr32.h

@@ -19,6 +19,7 @@
  */
 
 /* Exit codes */
+#define LOADLIBRARY_FAILED                    3
 #define GETPROCADDRESS_FAILED                 4
 
 /* Resource strings */