[dev-context] mtx-install.lua for linuxmusl-64

Hi, the installer for linuxmusl-64 creates invalid directory for binary files. There may be a bug in the file mtx-install.lua: -- ["linux-64"] = "linux-64", ["linux64"] = "linux-64", -- - ["linuxmusl-64"] = "linuxmusl", + ["linuxmusl-64"] = "linuxmusl-64", ["linuxmusl"] = "linuxmusl", -- ["linux-armhf"] = "linux-armhf", Best regards Martin Hasoň