misc: Quote input args

Author: JDBetteridge

scripts/clean_notebooks.sh

@@ -3,7 +3,7 @@
 # Clean your notebooks!
 
 # Clear all the output from all cells
-jupyter-nbconvert --clear-output $@
+jupyter-nbconvert --clear-output "$@"
 
 # Run the whole notebook in order from start to end
 ## We don't run with --ClearMetadataPreprocessor.enabled=True
@@ -13,12 +13,12 @@ jupyter-nbconvert \
     --allow-errors \
     --to notebook \
     --inplace \
-    $@
+    "$@"
 
 # Strip superfluous metadata
 ## NB: may need more extra-keys, these are just the current offenders
 nbstripout \
     --keep-output \
     --keep-count \
     --extra-keys='cell.metadata.editable cell.metadata.slideshow' \
-    $@
+    "$@"