Fixes syntax error

Author: j-ulrich

.travis.yml

@@ -9,12 +9,13 @@ before_script:
 
 script:
   - > 
-    docker run j-ulrich/http-status-codes /bin/bash
+    docker run j-ulrich/http-status-codes /bin/bash -c "
     g++ --version
     && qmake --version
     && cd tests
     && mkdir _build
     && cd _build
     && cmake -DCMAKE_BUILD_TYPE=Release ..
     && make all
-    && ctest --ouput-on-failure
+    && ctest --ouput-on-failure
+    "