`bundle exec` like a sudoer

gistfile1.sh

04:52:02: [master±|2.0.0p0] /code/parndt/forem$ rake forem:dummy_app
rake aborted!
You have already activated rake 10.0.4, but your Gemfile requires rake 10.0.3. Using bundle exec may solve this.
04:52:04: [master±|2.0.0p0] /code/parndt/forem$ bundle exec !!
bundle exec rake forem:dummy_app
Copying over Forem migrations... # success

gistfile2.sh

# Context: I rebased against master so the branch make_flexible has divergd from the remote version.

05:32:28: [make_flexible|2.0.0p0] /code/parndt/forem$ git push origin make_flexible 
To git@github.com:radar/forem.git
 ! [rejected]        make_flexible -> make_flexible (non-fast-forward)
error: failed to push some refs to 'git@github.com:radar/forem.git'
hint: Updates were rejected because the tip of your current branch is behind
hint: its remote counterpart. Merge the remote changes (e.g. 'git pull')
hint: before pushing again.
hint: See the 'Note about fast-forwards' in 'git push --help' for details.
05:32:45: [make_flexible|2.0.0p0] /code/parndt/forem$ !! --force
git push origin make_flexible  --force