Indentation + trailing whitespace behaviour changed between versions 1.5.0 and 1.5.1

[paleolimbot]

When upgrading to glue 1.5.1, we noticed a difference in the handling of indentation because we use glue in the arrow R package for code generation. It's a fairly easy workaround (see apache/arrow#11936) but I couldn't find anything in the merged PRs list or changelog that indicates that this was intentional. A few reprexes that I hope are helpful! It seems like the handling of trailing whitespace changed.

# remotes::install_github("tidyverse/glue")
glue::glue("\n  text\n  with\n  indentation\n  \n")
#>   text
#>   with
#>   indentation
#> 
glue::glue("\n  text\n  with\n  indentation")
#> text
#> with
#> indentation

# remotes::install_github("cran/glue@1.5.0")
glue::glue("\n  text\n  with\n  indentation\n  \n")
#> text
#> with
#> indentation
glue::glue("\n  text\n  with\n  indentation")
#> text
#> with
#> indentation

[jennybc]

Happened with 7172e09.

[paleolimbot]

Thank you!

[jennybc]

I plan to do a release with this and #236. Remains to be seen if that can happen before the holidays.