Make no trailing line a pre-processing step like trimming whitespaces

[lorenzwalthert]

Not sure we can omit setting trailing whitespace now in hash_standardize -> cache_make_key() to speed things up a little bit. Closes #865.

[codecov-commenter]

Codecov Report

Merging #867 (9803e55) into main (9fa042a) will decrease coverage by 0.00%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##             main     #867      +/-   ##
==========================================
- Coverage   89.73%   89.72%   -0.01%     
==========================================
  Files          47       47              
  Lines        2493     2492       -1     
==========================================
- Hits         2237     2236       -1     
  Misses        256      256              

Impacted Files	Coverage Δ
R/utils-cache.R	100.00% <ø> (ø)
R/transform-files.R	97.01% <100.00%> (ø)

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[github-actions]

This is how benchmark results would change (along with a 95% confidence interval in relative change) if d24968d is merged into main:

• ❗🐌cache_applying: 24.6ms -> 24.9ms [+0.46%, +2%]
•   :rocket:cache_recording: 1.03s -> 1.02s [-1.94%, -0.42%]
•   :ballot_box_with_check:without_cache: 2.71s -> 2.69s [-1.8%, +0.51%]

Further explanation regarding interpretation and methodology can be found in the documentation.

[lorenzwalthert]

not probable that this introduces statistically significant speed gains, since it is from a theoretical point very surely making things worse! Or what am I missing?

[github-actions]

This is how benchmark results would change (along with a 95% confidence interval in relative change) if eab7ee1 is merged into main:

•   :ballot_box_with_check:cache_applying: 28.6ms -> 28.5ms [-1.16%, +0.74%]
•   :ballot_box_with_check:cache_recording: 1.23s -> 1.21s [-4.09%, +0.41%]
•   :ballot_box_with_check:without_cache: 3.08s -> 3.07s [-0.48%, +0.24%]

Further explanation regarding interpretation and methodology can be found in the documentation.