PVS-Studio warning V519 for LibRaw

void DHT::illustrate_dline(int i) {
  ....
    int l = ndir[nr_offset(y, x)] & 8;
    l >>= 3;
    l = 1;
  ....
}

This suspicious code was found in LibRaw project by PVS-Studio static code analyzer.
Warning message is:
V519 The 'l' variable is assigned values twice successively. Perhaps this is a mistake. Check lines: 671, 672. dht_demosaic.cpp 672

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/