# About
  
  This script checks if a Pull Request needs squashing or if it is waiting for
  another Pull Request.
  
  # Usage
  
  ```bash
  ./pr_check.sh [<master branch>]
  ```
  
  The optional `<master branch>` parameter refers to the branch the pull request's
  branch branched from. The script will output all commits marked as squashable
  from `HEAD` to the merge-base with `<master branch>`. The default for
  `<master branch>` is `master`.
  
  A commit is marked as squashable if it contains the keywords SQUASH or FIX
  (case insensitive) within the first five characters of it's subject title.