PVS-Studio warning V576 for ReactOS

static void REGPROC_unescape_string(WCHAR* str)
{
  ...
  default:
    fprintf(stderr,
      "Warning! Unrecognized escape sequence: \\%c'\n",
      str[str_idx]);
  ...
}

%C should be used here.


This suspicious code was found in ReactOS project by PVS-Studio static code analyzer.
Warning message is:
V576 Incorrect format. Consider checking the third actual argument of the 'fprintf' function. The char type argument is expected. regedit regproc.c 293

PVS-Studio is a static analyzer for detecting bugs in the source code of applications written in C, C++, C++11, C++/CX. Site: http://www.viva64.com/en/pvs-studio/