Cleanup for coding style

Add strict mode to check_style_guide script

src/openspace.cpp

@@ -48,5 +48,5 @@ HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTIO
 CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE\n\
 OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.";
 }
-    
+
 } // namespace openspace