Fix parameters handling with implicit spec files
Created by: dredozubov
If no spec patterns are presented, rspec will run with empty spec list. This bug can demonstrated like this(taken from my work-related repo):
% rspec
....................................................................................................................................................................................................................................................................................................................
Finished in 14.48 seconds (files took 3.59 seconds to load)
308 examples, 0 failures
and
% bin/rspec --fail-fast
No examples found.
Finished in 0.0007 seconds (files took 21.11 seconds to load)
0 examples, 0 failures
It fails really fast indeed