Update CRAN comments

Author: hadley

cran-comments.md

@@ -5,8 +5,8 @@ There is one check note in this version:
  File ‘testthat/libs/testthat.so’:
     Found non-API calls to R: ‘SET_BODY’, ‘SET_CLOENV’, ‘SET_FORMALS’
 
-The plan is to remove these calls in the next release, but I wanted to deprecated the problematic functions `with_mock()` and `local_mock()` first so that users get a little warning.
+The plan is to remove these calls in the next minor release. I have now informed the majority of users that these functions are going away.
 
 ## revdepcheck results
 
-We checked all reverse dependencies, comparing R CMD check results across CRAN and dev versions of this package. There were a few failures due to some new strictness and use of internal failures. I've tracked fixes for them at https://github.com/r-lib/testthat/issues/2021.
+I did not check revdeps since the fixes are minor and should only decrease the number of errors.