[encode_all] clean up

encode_all

@@ -148,12 +148,15 @@ function encode() {
   fi
 }
 
-echo going to process
+echo starting processing
 find "$src_library" -type f -name '*.flac' -print0 | env_parallel -P 0 -0 --bar encode {}
 echo done processing
 
+echo removing obsolete opus files
 diff -d --suppress-common-lines <(cat "$temp_dir"/* | sort -V) <(find "$output_dir" -type f | sort -V) | grep -E '^>' | sed 's/^> //' | while read old_opus; do
   rm -f "$old_opus"
 done
+rm -rf "$temp_dir"
 
+echo deleting any empty directories
 find "$output_dir" -empty -type d -delete