Previous documented command was providing docker folder mount option to addlicense as arguments... that was incorrect. Folder should be mounted before specifying the docker image to run.
use the doublestar library to support pattern matching of files or
directories to ignore. This replaces (and deprecates) the previous
-skip flag which only supported file extensions.
When this flag is used:
* The program never modifies any files
* If all files in the pattern contain a license, the program exits with
a zero exit code
* If at least one file in the pattern requires modification to include
license text, the program prints such files to STDOUT and exits with
a non-zero exit code
