TEST(wip): minimizing changes for fix.

.docker/Dockerfile

@@ -32,7 +32,7 @@ CMD /wait-for-it.sh caosdb-server:10443 -t 500 -- \
     # ... install pylinkahead.ini and the server-side scripts
     cp /git/.docker/sss_pylinkahead.ini /scripting/home/.pylinkahead.ini && \
     cp -r /git/resources /scripting/bin-debug && \
-    # ... put out general version information
+    # Print general version information.
     python3 --version && \
     python3 -c "import linkahead; print(linkahead.version.version)" && \
     ls -alh /authtoken && \
@@ -40,7 +40,8 @@ CMD /wait-for-it.sh caosdb-server:10443 -t 500 -- \
     mkdir -p /extroot && \
     chown -R user /extroot && \
     chown -R user /git && \
-    sleep 20 && \  # Wait for all authtokens to be created.
+    # Wait for all authtokens to be created.
+    sleep 20 && \
     ls -alh /authtoken && \
     su user -c "timeout 2m pytest -s -vvv tests/test_authentication.py" && \
     echo "All successful"