4 New command line options were added to marc_stream_importer.pl for
5 passing additional Vandelay import flags. Prior to this change, only
6 auto-overlay-exact was supported.
10 * --auto-overlay-exact
11 ** Overlay/merge on exact 901c matches
12 * --auto-overlay-1match
13 ** Overlay/merge when exactly one match is found
14 * --auto-overlay-best-match
15 ** Overlay/merge on best match
17 ** Import when no match is found
19 Like Vandelay, these options can be combined.