Create branch to work on TT #1893: Define a 'quickcover' make target.  Prepare the way with some tidying up of current testing targets.
Create branch to work on TT #1893: Define a 'quickcover' make target.  Prepare
the way with some tidying up of current testing targets.

youprofit/parrot,gitster/parrot,FROGGS/parrot,tewk/parrot-select,FROGGS/parrot,FROGGS/parrot,youprofit/parrot,fernandobrito/parrot,tewk/parrot-select,tkob/parrot,gagern/parrot,gagern/parrot,tkob/parrot,gagern/parrot,parrot/parrot,parrot/parrot,youprofit/parrot,youprofit/parrot,fernandobrito/parrot,gitster/parrot,parrot/parrot,tkob/parrot,fernandobrito/parrot,parrot/parrot,youprofit/parrot,FROGGS/parrot,youprofit/parrot,gitster/parrot,tkob/parrot,gagern/parrot,tewk/parrot-select,tkob/parrot,gagern/parrot,gitster/parrot,gitster/parrot,gitster/parrot,tkob/parrot,fernandobrito/parrot,tewk/parrot-select,tkob/parrot,tkob/parrot,tewk/parrot-select,tewk/parrot-select,FROGGS/parrot,FROGGS/parrot,youprofit/parrot,youprofit/parrot,gagern/parrot,fernandobrito/parrot,fernandobrito/parrot,tewk/parrot-select,parrot/parrot,fernandobrito/parrot,gitster/parrot,FROGGS/parrot,gagern/parrot,FROGGS/parrot