Fix failing test case in R16B03-1

Fix was already in the module being tested, but this one issue came when
generating a dump to load data from.
Remove invalid test assertion

Thanks @sg2342 in issue #9
Do not redefine built-in mfa/0 type. Use tspec/0 type, instead.
Improve indentation.
Merge pull request #10 from robertoaloi/mfa-builtin-type

Do not redefine built-in mfa/0 type.
Bump to 2.1.1