allow installed files to contain weirdo characters
allow installed files to contain weirdo characters

...like '$' (e.g. "$arg-help.pd")
by installing them one-by-one and using single-quotes
(so the shell doesn't expand the dollargs)

NOTE: this does not fix compiling such weirdo filenames

Closes: https://github.com/pure-data/pd-lib-builder/issues/19

ArnaudCourcelle/external,myQwil/pd-externals