The config parameter 'newline_replacement' (defaults to 1 space " ") now defines
what to write to the log file when the sql-query has a newline sequence (\n, \r or
\r\n). If 'newline_replacement' is the empty string "", no replacing is done and
newlines are printed to file.
Also, adds the config parameter 'separator', which defines the string
printed between elements. Default value is ",".
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