The comments for the require package were just copied over
from the assert package when generating the functions.
This could lead to confusion because
1. The code-examples were showing examples using the
assert package instead of the require package
2. The function-documentation was not mentioning that
the functions were calling `t.FailNow()` which is some
critical information when using this package.
Use Go 1.9 t.Helper() to remove testify from the output of the tests and
stop using `\r` to try to overwrite the output.
This means in Go 1.7 and Go 1.8 testify will appear as failing the test.
