Update CRAN comments

cran-comments.md

@@ -1,10 +1,9 @@
 
 ## Test environments
 
-* local: darwin15.6.0-3.5.1
-* travis: 3.2, 3.3, 3.4 oldrel, release, devel
-* r-hub: windows-x86_64-devel, ubuntu-gcc-release, fedora-clang-devel
-* win-builder: windows-x86_64-devel
+* local macOS: release
+* Travis Ubuntu: 3.2, 3.3, 3.4, 3.5, 3.6, 4.0, devel
+* win-builder: release, devel
 
 
 ## R CMD check results
@@ -14,4 +13,4 @@
 
 ## Reverse dependencies
 
-I have checked the 84 packages that depend on tidyselect. I couldn't install 4 package. I found 8 failing packages. The maintainers were notified 2 weeks ago. We'll send a dplyr update soon.
+I have checked the 104 packages that depend on tidyselect. I couldn't install 3 package. I found 1 failing package, and provided a patch to fix it.