Fix issue

tg_server/tg_server.lua

@@ -115,7 +115,7 @@ elseif args[1] == "add_card" then
         local card_hash = hash(new_card)
 
         local key_file = fs.open(card_hash..'.key', 'w')
-        key_file.write(new_card)
+        key_file.write(new_card..'\n')
         key_file.close()
 
         local trusted_keys = fs.open(dir..config.key_file, 'a')
@@ -133,6 +133,8 @@ elseif args[1] == "remove_card" then
             local trusted_hash = trusted_keys.readLine()
             if trusted_hash ~= key_hash then
                 table.insert(new_key_table, trusted_hash)
+            else
+                print("Removed "..key_hash)
             end
             if not trusted_hash then break end -- Stop when EOF reached
         end