Fix a YAML syntax error in .travis.yml

In a list item, multiple lines are concatenated. As a result, a
comment anywhere in the item runs until the end of the item, effectively
commenting everything that follows it, such as in:

    section:
      - line1
        line2
        # line3
        line4

The item in this section will have a value of "line1 line2".

Signed-off-by: David Wagner <[email protected]>

Author: dawagner

.travis.yml

@@ -68,8 +68,8 @@ script:
         CTEST_OUTPUT_ON_FAILURE=1 make ExperimentalTest ExperimentalMemCheck &&
         make install )
   - ( cd tools/clientSimulator &&
-        # TODO: install the generated .deb instead of using ../install
-        #       This would permit to test the packaging
+        echo "TODO - install the generated .deb instead of using ../install."
+             "This would permit to test the packaging" &&
         cmake -DCMAKE_INSTALL_PREFIX=../install . &&
         make &&
         make install )