drush-ops/drush — pull request #873 by jhedstrom (2014-10-07 17:22:11+00:00)
Title: Allows drush make to completely overwrite existing directories.

Many folks' workflows around drush make involve completely removing the existing build prior to running make.

This patch would allow a `--overwrite` flag, to mimic that behavior without requiring the removal of a build prior to running make.