R Under development (unstable) (2024-07-03 r86870 ucrt) -- "Unsuffered Consequences"
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> library(testit)
> test_pkg("knitr")

Warning messages:
1: In write_bib(pkgs, tempfile(), tweak = FALSE) :
  package(s) KernSmooth, MASS, boot, class, cluster, foreign, mgcv, nlme, nnet, rpart, spatial, survival not found
2: In write_bib(pkgs, tweak = TRUE) :
  package(s) KernSmooth, MASS, boot, class, cluster, foreign, mgcv, nlme, nnet, rpart, spatial, survival not found
3: In sanitize_fn("fig space/a.b") :
  Replaced special characters in figure filename 'fig space/a.b' -> 'fig_space/a.b'
> 
> proc.time()
   user  system elapsed 
   2.00    0.39   34.12