Correct evolution 2L for sp::is.projected()

[rsbivand]

rsbivand@397c305 fixes an omitted part of the 2L evolution setting

[rsbivand]

I also updated the example in ?gridlines to let the package pass under all three evolution values in my fork, main branch.

[edzer]

Thanks! I added rsbivand@397c305 by hand, and cleaned up the code in 684edc9 - hope you like it!

[rsbivand]

Thanks! What about the gridlines man page examples? My commit to my fork makes it work, but maybe we could just retain the very first block that doesn't load rgdal and should (?) work for all three evolution status values?

[edzer]

These changes also meet _R_CHECK_DEPENDS_ONLY_=true, which seems to be coming.

[rsbivand]

Maybe also break:

* checking Rd line widths ... NOTE
Rd file 'gridlines.Rd':
  \examples lines wider than 100 characters:
     if (get("evolution_status", envir=sp:::.spOptions) == 2L && requireNamespace("sf", quietly=TRUE)) run <- TRUE
     if (get("evolution_status", envir=sp:::.spOptions) == 0L && requireNamespace("rgdal", quietly=TRUE)) run <- TRUE

[rsbivand]

Proposed here: rsbivand@d51fb91

This also adds switching the default proj4 datum specs loss warnings from ""all" to "none" as per: https://stat.ethz.ch/pipermail/r-sig-geo/2020-May/028125.html; will update rgdal to 1.6-1 soon and submit.

[rsbivand]

And R CMD check with rgdal, rgeos and maptools absent revealed another way around - as was failed because run TRUE but no rgdal: rsbivand@b73d2f3. Check log with this proposed change:
00check.log