full diff: https://github.com/gotestyourself/gotest.tools/compare/v3.0.1...v3.0.2
- assert: Fix NilError, error non-nil type
- fixes: Typed nil errors should not pass "NilError"
- fixes: "reflect: call of reflect.Value.IsNil on struct Value" for struct error type
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>