Ticket #5446: date_time.diff

./boost/date_time/tz_db_base.hpp

@@ -172 +172 @@
       {
         std::string  buff;
         while( std::getline(in, buff)) {
-          parse_string(buff);
+         int lastPos = buff.size() - 1;
+         if (lastPos > 0) {
+          if (buff.at(lastPos) == '\r') {
+           buff.erase(lastPos);
+          }
+         }
+         parse_string(buff);
         }
       }