Move, copy, append, and link multiple files

Current versions

Formula history

ilovezfs mmv: use assert_predicate and refute_predicate
Dominyk Tiller mmv: prefer berkeley debian mirror
Nikolaus Wittenstein Add descriptions to all remaining homebrew packages
Xu Cheng mmv: add test
Jack Nagel mmv: use install_symlink
Jack Nagel mmv: fix build with clang
Jack Nagel mmv: use checksummed patches