Update check-format to be python3 compatible

Author: DarcyRaynerDD

scripts/check_format.sh

@@ -1,7 +1,7 @@
 #!/bin/sh
 set -e
 
-PYTHON_VERSION=$(python -c 'import sys; print sys.version_info.major')
+PYTHON_VERSION=$(python -c 'import sys; print(sys.version_info.major)')
 if [ "$PYTHON_VERSION" = "2" ]; then
     echo "Skipping formatting, black not compatible with python 2"
     exit 0