chore(check): Fix minor check warnings (#4299)

.Rbuildignore

@@ -32,3 +32,4 @@
 ^eslint\.config\.mjs$
 ^_dev$
 ^.claude$
+^README-npm\.md$

package.json

@@ -70,7 +70,7 @@
     "coverage_detailed": "npx --yes type-check --detail",
     "coverage": "type-coverage -p tsconfig.json --at-least 90",
     "circular": "npx --yes dpdm --transform ./srcts/src/index.ts",
-    "prepack": "cp README.md README-orig.md && cp npm-README.md README.md",
+    "prepack": "cp README.md README-orig.md && cp README-npm.md README.md",
     "postpack": "test -f README-orig.md && cp README-orig.md README.md && rm README-orig.md"
   },
   "prettier": {

tests/testthat/test-plot-coordmap.R

@@ -348,12 +348,20 @@ test_that("ggplot coordmap with various scales and coords", {
     sortList(list(left=10, right=20, bottom=0, top=5))
   )
 
+  coord_transform_universal <- function(...) {
+    if (packageVersion("ggplot2") >= "4.0.0") {
+      coord_transform(...)
+    } else {
+      coord_trans(...)
+    }
+  }
+
   # Log scales and log coord transformations
   dat <- data.frame(xvar = c(10^-1, 10^3), yvar = c(2^-2, 2^4))
   p <- ggplot(dat, aes(xvar, yvar)) + geom_point() +
     scale_x_log10(expand = c(0 ,0)) +
     scale_y_continuous(expand = c(0, 0)) +
-    coord_trans(y = "log2")
+    coord_transform_universal(y = "log2")
   png(tmpfile)
   m <- getGgplotCoordmap(print(p), 500, 400, 72)
   dev.off()