Example for arg prints incorrect function name

[kellijohnson-NOAA]

The dummy function in the example for lifecycle::deprecated() is called foobar_adder but the call to lifecycle::deprecate_warn() looks like https://github.com/r-lib/lifecycle/blob/9417eca8f5091f95b4569fb6c388e4394e2b2157/R/arg.R#L24 where foo is shown as the package from which bar_adder() comes from rather than a function called foobar_adder(). As is, it results in the user seeing

The `baz` argument of `bar_adder()` is deprecated as of foo 1.0.0.

I believe the line should be

deprecate_warn("1.0.0", "foobar_adder(baz = )", "foobar_adder(bar = )")

but then the user would not see the functionality of which package the function is coming from. Thanks for the great package! I am happy to open a pull request for this but I am honestly not sure if the suggested line above is the best answer.

R Session Info

> sessionInfo()
R Under development (unstable) (2022-09-18 r82873 ucrt)
Platform: x86_64-w64-mingw32/x64 (64-bit)
Running under: Windows 10 x64 (build 19045)

Matrix products: default

locale:
[1] LC_COLLATE=English_United States.utf8 
[2] LC_CTYPE=English_United States.utf8
[3] LC_MONETARY=English_United States.utf8
[4] LC_NUMERIC=C
[5] LC_TIME=English_United States.utf8

attached base packages:
[1] stats     graphics  grDevices utils     datasets  methods   base

other attached packages:
 [1] lifecycle_1.0.3        lubridate_1.9.2        forcats_1.0.0
 [4] stringr_1.5.0          dplyr_1.1.0            purrr_1.0.1
 [7] readr_2.1.4            tidyr_1.3.0            tibble_3.1.8
[10] ggplot2_3.4.1          tidyverse_2.0.0        PacFIN.Utilities_0.2.6
[13] testthat_3.1.6         devtools_2.4.5         usethis_2.1.6

loaded via a namespace (and not attached):
 [1] gtable_0.3.1       htmlwidgets_1.6.1  remotes_2.4.2      processx_3.8.0
 [5] tzdb_0.3.0         callr_3.7.3        vctrs_0.5.2        tools_4.3.0
 [9] ps_1.7.2           generics_0.1.3     fansi_1.0.4        chron_2.3-59      
[13] pkgconfig_2.0.3    desc_1.4.2         ggridges_0.5.4     compiler_4.3.0
[17] brio_1.1.3         measurements_1.5.0 munsell_0.5.0      janitor_2.2.0
[21] snakecase_0.11.0   httpuv_1.6.9       htmltools_0.5.4    nwfscSurvey_2.1
[25] later_1.3.0        pillar_1.8.1       crayon_1.5.2       urlchecker_1.0.1  
[29] RODBC_1.3-20       ellipsis_0.3.2     cachem_1.0.7       sessioninfo_1.2.2
[33] mime_0.12          tidyselect_1.2.0   digest_0.6.31      stringi_1.7.12
[37] reshape2_1.4.4     cowplot_1.1.1      rprojroot_2.0.3    fastmap_1.1.1
[41] grid_4.3.0         colorspace_2.1-0   cli_3.6.0          magrittr_2.0.3    
[45] pkgbuild_1.4.0     utf8_1.2.3         withr_2.5.0        prettyunits_1.1.1
[49] scales_1.2.1       promises_1.2.0.1   timechange_0.2.0   hms_1.1.2
[53] memoise_2.0.1      shiny_1.7.4        miniUI_0.1.1.1     profvis_0.3.7     
[57] rlang_1.0.6        Rcpp_1.0.10        xtable_1.8-4       glue_1.6.2
[61] pkgload_1.3.2      rstudioapi_0.14    jsonlite_1.8.4     R6_2.5.1
[65] plyr_1.8.8         fs_1.6.1