Update clang-format to 5 in debian developer file

buildconfig/dev-packages/deb/mantid-developer/ns-control

@@ -3,13 +3,13 @@ Priority: optional
 Standards-Version: 3.9.2
 
 Package: mantid-developer
-Version: 1.3.4
+Version: 1.3.5
 Maintainer: Mantid Project <mantid-tech@mantidproject.org>
 Priority: optional
 Architecture: all
 Depends: git,
   g++,
-  clang-format-3.6,
+  clang-format-5.0,
   cmake-qt-gui(>=3.5),
   ninja-build,
   libtbb-dev,