Removed gdalUtils from Suggests, as it was removed from CRAN on 2022-04-18. (I had used it in this package’s test suite, comparing its results with those of this package.)
Added rgdal to Suggests, to cure a CRAN complaint about its needing to be available to run the example in ?gdal_grid.
gRasterize() function and, as a result, the gdalUtilities package’s dependency on the raster package and its dependencies. (Thanks to Jakub Nowosad for the suggestion.) The source code for gRasterize() is still available in the GitHub gist at https://gist.github.com/JoshOBrien/7cf19b8b686e6d6230a78a1a9799883b from where it may be sourced using, e.g., devtools::source_gist().