The minizip command shows:

Usage: minizip [-x][-d dir|-l|-e][-o][-f][-y][-c cp][-a][-j][-0 to -9][-b|-m][-k 512][-p pwd][-s] file.zip [files]

along with explanations of the command line options.

However, the options -e and -j are not explained.

From the source code it could be seen that -e is meant to erase files. But what does -j do, is it used at all?