docker-compose up doesn't work: builder stops with error

docker-compose up stops with the message "end of file unexpected (expecting "then"):

```
=> [builder 1/19] RUN apt-get update && apt-get install -y autoconf autoconf-archive automake autotools-dev 123.6s
=> [builder 2/19] COPY docker/deployment/ /deployment/ 0.0s
=> [builder 3/19] COPY data/ /src/tscan/data 0.1s
=> [builder 4/19] COPY docker/data/ /src/tscan/docker/data/ 0.0s
=> [builder 5/19] WORKDIR /deployment 0.0s
=> ERROR [builder 6/19] RUN ./add-alpino.sh 0.5s
------
> [builder 6/19] RUN ./add-alpino.sh:
#0 0.504 ./add-alpino.sh: 9: Syntax error: end of file unexpected (expecting "then")
------
failed to solve: executor failed running [/bin/sh -c ./add-alpino.sh]: exit code: 2
```

I'm using docker on Windows 10.

Inspect docker/deployment/add-alpino.sh around line 9, then reproduce the failure with docker-compose up on the reported setup. Confirm that the builder passes the RUN ./add-alpino.sh step and that docker-compose up completes successfully.

Written by the indexing model from the issue text.