Delete all redundant git branches

safe--git-branch-delete.sh

# Delete all redundant git branches

# 1. `git branch` lists all the branches
# 2. `xargs -L1` consumes the pipe output one line at a time, feeding it as an an arg to the target command
# 3. `git branch -d` deletes the branches that are redundant (already merged).
# Note: this print results for each branch, either 
# saying it's deleted or that you need to use -D to delete it because it's not redundant.

git branch | xargs -L1 git branch -d