mesar option… command ARCHIVE-FILE FILE…
The command is ignored for compatibility with ar
r[ab][f][u] - replace existing or insert new file(s) into the archive [c] - do not warn if the library had to be created [D] - use zero for timestamps and uids/gids (default)
and assumed to be crD.
The options can be among the following:
display this help and exit
display version and exit