Update CRAN comments

Author: hadley

cran-comments.md

@@ -4,4 +4,9 @@
 
 ## revdepcheck results
 
-No failures seen.
+We checked 232 reverse dependencies, comparing R CMD check results across CRAN and dev versions of this package.
+
+ * We saw 7 new problems. I filed patches with the maintainers or emailed a 
+   suggested fix; see <https://github.com/r-lib/httr2/issues/772> for details.
+
+ * We failed to check 3 packages: arcgisplaces, dataRetrieval, eudata.