photoprep: make a bit more readable

.config/zsh/functions/photoprep

@@ -28,10 +28,14 @@ for file in ${@}; do
     newfile=photoprep/${file##*/}
     newfile=${newfile%.*}.${format}
     local exif_json=$(mktemp --suffix='.photoprep.json')
+
+    # write select EXIF data to temporary file
     exiftool -json ${file} | jq ${jq_filter} | grep -v null > ${exif_json}
     magick -quality ${quality} ${file} -auto-orient -strip -resize ${size} ${newfile}
+    # add EXIF data to new (scrubbed) file
     exiftool -json=${exif_json} -quiet -overwrite_original ${newfile}
     rm ${exif_json}
+
     print -n '.'
 done
 print