Check Eprime log-frame line ranges
make_ranges(starts, ends, eprime_log)
the line numbers of the log-frame start lines
the line numbers of the log-frame end lines
a character vector of lines from an Eprime log file
a list of sequences. Each list contains the line numbers contained by an Eprime log-frame. If there is a log frame without an end-line, that partial frame is excluded and its contents are previed in a warning message.