Add missing spaces around "and" in glue_collapse()

[Bisaloo]

Example error message at the moment:

Error in linters_with_tags(tags = NULL) :
Linters ‘implicit_assignment_linter’, ‘matrix_apply_linter’, ‘quotes_linter’and‘unnecessary_concatenation_linter’ advertised by available_linters() but not exported by package lintr.

[MichaelChirico]

code LGTM!

needs a news item (since this is present on CRAN) and a regression test would be good too.

Thanks!

[Bisaloo]

Lints are unrelated to my changes. Should I fix them here or open another PR, wait for it to be merged and rebase?

[MichaelChirico]

this lint is new

[codecov-commenter]

Codecov Report

Merging #1946 (4534eb0) into main (2997038) will increase coverage by 0.08%.
The diff coverage is 100.00%.

❗ Current head 4534eb0 differs from pull request most recent head e73fa26. Consider uploading reports for the commit e73fa26 to get more accurate results

@@            Coverage Diff             @@
##             main    #1946      +/-   ##
==========================================
+ Coverage   98.86%   98.94%   +0.08%     
==========================================
  Files         113      113              
  Lines        4939     4939              
==========================================
+ Hits         4883     4887       +4     
+ Misses         56       52       -4     

Impacted Files	Coverage Δ
R/with.R	98.52% <100.00%> (+5.88%)	⬆️

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[IndrajeetPatil]

You can ignore them in this PR.

#1879 handles this issue.