+ implicitly called by CStringIndexator::IndexOneToken() for overlong lines if new bool param tryFixErrors is true
+ tryFixErrors param is populated from CConcIndexator::m_bResumeOnIndexErrors on IndexOneToken() calls
+ truncates only "greedy" columns (those using more than MaxLen/nCols bytes)
+ truncates each "greedy" column indepdently, proportionate to its "greediness"
(the number of bytes by which its length exceeds MaxLen/nCols)
+ emits console warnings about truncation of line and each truncated column when invoked