Initialize the reader state structure to 0

pcsc_scan.c

@@ -525,7 +525,7 @@ int main(int argc, char *argv[])
  LONG rv;
 #endif
  SCARD_READERSTATE *rgReaderStates_t = NULL;
- SCARD_READERSTATE rgReaderStates[1];
+ SCARD_READERSTATE rgReaderStates[1] = { 0, };
  DWORD dwReaders = 0, dwReadersOld;
  LPSTR mszReaders = NULL;
  char *ptr = NULL;