Rescue File.expand_path in MSpecScript#try_load if HOME is unavailable
Rescue File.expand_path in MSpecScript#try_load if HOME is unavailable

mspec tries to load ~/.mspecrc, but some platforms (e.g. WASI) doesn't
have HOME concept, so `~` cannot be expanded and `File.expand_path` can
fail.

ruby/mspec,ruby/mspec