cleanup some mis-named things and remove dead var

bin/blackbox_shred_all_files

@@ -11,7 +11,6 @@ echo '========== ENCRYPTED FILES THAT WERE UNLOCKED:'
 awk <"$BB_FILES" '{ print "    " $1 ".gpg" }'
 
 echo '========== FILES THAT WILL BE SHREDDED:'
-need_warning=false
 for i in $(<$BB_FILES) ; do
   unencrypted_file=$(get_unencrypted_filename "$i")
   encrypted_file=$(get_encrypted_filename "$i")

bin/blackbox_update_all_files

@@ -1,7 +1,7 @@
 #!/usr/bin/env bash
 
 #
-# blackbox_edit_end.sh -- Re-encrypt file after edits.
+# blackbox_update_all_files -- Re-encrypt file after edits.
 #
 
 set -e