Roll back to version 8 since 9 is in test

Author: baylesj

.travis.yml

@@ -15,10 +15,10 @@ addons:
   apt:
     sources:
     - ubuntu-toolchain-r-test
-    - llvm-toolchain-xenial-9
+    - llvm-toolchain-xenial-8
     packages:
-    - clang-format-9
-    - clang-9
+    - clang-format-8
+    - clang-8
     - valgrind
 matrix:
   allow_failures:

.travis_scripts/run-clang-format.sh

@@ -1,4 +1,4 @@
 #!/usr/bin/env bash
 
 DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null 2>&1 && pwd )"
-python $DIR/run-clang-format.py --clang-format-executable clang-format-9 -r $DIR/../src/**/ $DIR/../include/**/
+python $DIR/run-clang-format.py -r $DIR/../src/**/ $DIR/../include/**/