Cache now obeys -q when showing summary for --lf and --ff

[nicoddemus]

Related to #3853

[coveralls]

Coverage increased (+0.05%) to 92.641% when pulling 47bb53f on nicoddemus:ff-quiet into a319674 on pytest-dev:master.

[codecov]

Codecov Report

Merging #3886 into master will increase coverage by 0.05%.
The diff coverage is 100%.

@@            Coverage Diff             @@
##           master    #3886      +/-   ##
==========================================
+ Coverage   92.59%   92.64%   +0.05%     
==========================================
  Files          51       51              
  Lines        9960     9960              
==========================================
+ Hits         9222     9227       +5     
+ Misses        738      733       -5

Impacted Files	Coverage Δ
src/_pytest/cacheprovider.py	98.42% <100%> (ø)	⬆️
src/_pytest/terminal.py	94.42% <0%> (+0.92%)	⬆️

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