travis: rot13 lowercase, too.

travis/binaries/travis-cleanup.sh

@@ -3,6 +3,6 @@
 # See travis/upload.sh for more documentation
 
 git remote set-url --push origin git@github.com:haskell-pushbot/cabal-binaries.git
-(umask 177 && tr A-Z N-ZA-M < id_rsa.rot13 > $HOME/.ssh/id_rsa)
+(umask 177 && tr A-Za-z N-ZA-Mn-za-m < id_rsa.rot13 > $HOME/.ssh/id_rsa)
 ssh-keyscan github.com >> $HOME/.ssh/known_hosts
 git push origin --delete "$(git rev-parse --abbrev-ref HEAD)"

travis/upload.sh

@@ -39,7 +39,7 @@ cd travis
 # Setup SSH key we will use to push to binaries repository.
 # umask to get the permissions to be 600 (not 400, because the deploy
 # script in .travis.yml is going to clobber this private key)
-(umask 177 && tr A-Z N-ZA-M < id_rsa.rot13 > $HOME/.ssh/id_rsa)
+(umask 177 && tr A-Za-z N-ZA-Mn-za-m < id_rsa.rot13 > $HOME/.ssh/id_rsa)
 
 # Setup SSH keys
 ssh-keyscan github.com >> $HOME/.ssh/known_hosts
@@ -65,7 +65,7 @@ mkdir cabal-install
 cp -R $TRAVIS_BUILD_DIR/Cabal/tests                                  Cabal
 cp -R $TRAVIS_BUILD_DIR/cabal-install/tests                          cabal-install
 # Copy in credentials so we can delete branch when done
-tr A-Z N-ZA-M < $TRAVIS_BUILD_DIR/travis/id_rsa.rot13 > id_rsa
+tr A-Za-z N-ZA-Mn-za-m < $TRAVIS_BUILD_DIR/travis/id_rsa.rot13 > id_rsa
 # Install all of the necessary files for testing
 cp $TRAVIS_BUILD_DIR/travis-install.sh .
 cp $TRAVIS_BUILD_DIR/travis-common.sh .