Add grepv() awareness to the package

[MichaelChirico]

Closes #2855. Closes #2648. Progress on #2737

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 99.64%. Comparing base (b9c4205) to head (5792122).
Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #2856   +/-   ##
=======================================
  Coverage   99.64%   99.64%           
=======================================
  Files         127      127           
  Lines        7078     7080    +2     
=======================================
+ Hits         7053     7055    +2     
  Misses         25       25           

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[Bisaloo]

Potentially in a follow up PR, but if we start recommending grepv() (which I agree with), it would be good to also lint grep(, value = TRUE).

[MichaelChirico]

Potentially in a follow up PR, but if we start recommending grepv() (which I agree with), it would be good to also lint grep(, value = TRUE).

Yea, I've been meaning to file that as an issue for a new linter (presumably grepv_linter(), I'm not sure if maybe it should be subsumed in another linter, probably not).

[Bisaloo]

Also fixes #2648 I think.