collateindex.pl(1) on Linux
The text c0cd7c69630c, as Debian 3.0 (Woody) shipped it.
generate DocBook index files
Flags it lists
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-I -
-N -
-P -
-S -
-V -
-f -
-g -
-i -
-o -
-p -
-q -
-s -
-t -
-x