PVS-Studio warning V612 for Scilab

static int msg_101(int *n, int *ierr)
{
  ....
  for (i=0;i<(int)strlen(line);i++)
  {
    if (line[i]==' ') line[i]='\0';
    break;
  }
  ....
}

This suspicious code was found in Scilab project by PVS-Studio static code analyzer.
Warning message is:
V612 An unconditional 'break' within a loop. msgs.c 1293

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/