[boost] patch tokenizer offset_separator implementation

*** token_functions.hpp.orig Tue Nov 21 14:49:40 2006 --- token_functions.hpp Tue Nov 21 14:51:44 2006 *************** *** 350,356 **** assigner::assign(start,next,tok); if (!return_partial_last_) ! if (i < (c-1) ) return false; ++current_offset_; --- 350,356 ---- assigner::assign(start,next,tok); if (!return_partial_last_) ! if (i < c) return false; ++current_offset_;