git-author-rewrite

#!/bin/sh

 git filter-branch -f --env-filter '

 OLD_EMAIL="WRONG_COMMIT_EMAIL"
 CORRECT_NAME="YOUR_COMMIT_NAME"
 CORRECT_EMAIL="YOUR_COMMIT_EMAIL"

 if [ "$GIT_COMMITTER_EMAIL" = "$OLD_EMAIL" ]
 then
     export GIT_COMMITTER_NAME="$CORRECT_NAME"
     export GIT_COMMITTER_EMAIL="$CORRECT_EMAIL"
 fi
if [ "$GIT_AUTHOR_EMAIL" = "$OLD_EMAIL" ]
then
     export GIT_AUTHOR_NAME="$CORRECT_NAME"
     export GIT_AUTHOR_EMAIL="$CORRECT_EMAIL"
fi
' --tag-name-filter cat -- --branches --tags