Preserve return value in MiniTest example
Preserve return value in MiniTest example

The return value of MiniTest::Unit::TestCase is significant and needs
to be returned in order for the test reporter to work properly.

I also added an example for overriding the base implementation instead
of doing it in a subclass.

gferguson-gd/sequel,nicohvi/sequel,pfarrell/sequel,gferguson-gd/sequel,offshore-safety/sequel,uhoh-itsmaciek/sequel,mpalmer/sequel,t-morgan/sequel,davidbegin/sequel,dennis-d/custom_sequel,nicohvi/sequel,yazshel/sequel,dennis-d/custom_sequel,chef/sequel,pfarrell/sequel,reubano/sequel,offshore-safety/sequel,reubano/sequel,bigfix/sequel,davidbegin/sequel,nju520/sequel,nju520/sequel,freshpay/sequel,knut2/sequel,freshpay/sequel,knut2/sequel,mpalmer/sequel,offshore-safety/sequel,beni55/sequel,uhoh-itsmaciek/sequel,t-morgan/sequel,Marketcircle/sequel,beni55/sequel,yazshel/sequel,seeARMS/sequel,seeARMS/sequel