Added max-line-length arg

Author: akash-suresh

build_tools/circle/linting.sh

@@ -130,7 +130,7 @@ check_files() {
     if [ -n "$files" ]; then
         # Conservative approach: diff without context (--unified=0) so that code
         # that was not changed does not create failures
-        git diff --unified=0 $COMMIT_RANGE -- $files | flake8 --diff --show-source $options
+        git diff --unified=0 $COMMIT_RANGE -- $files | flake8 --diff --max-line-length=88 --show-source $options
     fi
 }