PVS-Studio warning V576 for Scilab

#define FORMAT_SESSION "%s%s%s"

char *getCommentDateSession(BOOL longFormat)
{
  ....
  sprintf(line, FORMAT_SESSION, SESSION_PRAGMA_BEGIN,
          STRING_BEGIN_SESSION, time_str, SESSION_PRAGMA_END);
  ....
}

This suspicious code was found in Scilab project by PVS-Studio static code analyzer.
Warning message is:
V576 Incorrect format. A different number of actual arguments is expected while calling 'sprintf' function. Expected: 5. Present: 6. getcommentdatesession.c 68

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