Line-wrap warning and error messages from the API

[brookslogan]

Warnings and error messages forwarded from the API aren't line-wrapped and could look better.

library(epidatr)
issue_data =
  covidcast(
    data_source = "hhs", signal = "confirmed_admissions_influenza_1d",
    geo_type = "state", time_type = "day",
    geo_values = c("az","ga"),
    # all `time_value`s:
    time_values = epirange(20221201, 20221231),
    # all issues through the analysis issue
    issues = epirange(20230101, 20230102)
  ) %>%
  fetch()
#> Warning: No API key found. You will be limited to non-complex queries and encounter rate
#> limits if you proceed.
#> To avoid this, you can get your key [here] and then:
#> ℹ set the environment variable DELPHI_EPIDATA_KEY
#> ℹ set the option 'delphi.epidata.key'
#> 
#> To save your key for later sessions (and hide it from your code), you can edit
#> your .Renviron file with:
#> ℹ usethis::edit_r_environ()
#> This warning is displayed once every 8 hours.
#> Warning: epidata warning: This request exceeded the anonymous limit on selected multiples, which will be enforced starting 2023-06-21. To be exempt from this limit, authenticate your requests with a free API key, now available at https://api.delphi.cmu.edu/epidata/admin/registration_form. A temporary public key `TEMP-API-KEY-EXPIRES-2023-06-28` is available for use between now and 2023-06-28 to give you time to register or adapt your requests without this message continuing to break your systems.

^{Created on 2023-06-05 with reprex v2.0.2 but altered to show that we're not actually wrapping the message.}

We might be able to use cli for this, but need to be careful not to use the message directly as a cli format string. (I vaguely recall fiddling with this and using the brace syntax for gluing in a string and it not doing the line wrapping though, but my memory could be bad. There might be some special cli/glue thing to enable the line wrap on interpolated strings. Or we have some internal helpers in epiprocess for line wrapping, but that's sort of backwards progress.)

[brookslogan]

Hmm, maybe cli will properly wrap it. Just tried this for something else with cli::cli_abort("set prefix: {message}") and it seemed to wrap. Here, using the brace syntax is essential to interpolate the message string; see link above.