Docker Toolbox: Looks like somethin went wrong in step ´Finalize´... line 104

Honestly, I didn’t think that Docker on Windows would be such a pain in the a**.

That said, I’ve now come to the point getting docker toolbox up and running on my Windows 10 machine until running docker quickstart terminal, which fails :

                        ##         .
              ## ## ##        ==
           ## ## ## ## ##    ===
       /"""""""""""""""""\___/ ===
  ~~~ {~~ ~~~~ ~~~ ~~~~ ~~~ ~ /  ===- ~~~
       \______ o           __/
         \    \         __/
          \____\_______/

docker is configured to use the default machine with IP 192.168.99.103
For help getting started, check out the docs at https://docs.docker.com


bash: C:\Program Files\Docker Toolbox\start.sh: line 104: syntax error near unexpected token `('
Looks like something went wrong in step ´Finalize´... Press any key to continue... 

I can comment out those lines inside the start.sh script and it still seems to work, but why is this happening?