[i18n] Pass over bank, cleanup, customcom, dataconverter, downloader

Signed-off-by: Toby Harradine <tobyharradine@gmail.com>

redbot/cogs/downloader/checks.py

@@ -1,11 +1,15 @@
 import asyncio
 
 from redbot.core import commands
+from redbot.core.i18n import Translator
 from redbot.core.utils.predicates import MessagePredicate
 
 __all__ = ["do_install_agreement"]
 
-REPO_INSTALL_MSG = (
+T_ = Translator("DownloaderChecks", __file__)
+
+_ = lambda s: s
+REPO_INSTALL_MSG = _(
     "You're about to add a 3rd party repository. The creator of Red"
     " and its community have no responsibility for any potential "
     "damage that the content of 3rd party repositories might cause."
@@ -14,6 +18,7 @@ REPO_INSTALL_MSG = (
     "shown again until the next reboot.\n\nYou have **30** seconds"
     " to reply to this message."
 )
+_ = T_
 
 
 async def do_install_agreement(ctx: commands.Context):
@@ -21,14 +26,14 @@ async def do_install_agreement(ctx: commands.Context):
     if downloader is None or downloader.already_agreed:
         return True
 
-    await ctx.send(REPO_INSTALL_MSG)
+    await ctx.send(T_(REPO_INSTALL_MSG))
 
     try:
         await ctx.bot.wait_for(
             "message", check=MessagePredicate.lower_equal_to("i agree", ctx), timeout=30
         )
     except asyncio.TimeoutError:
-        await ctx.send("Your response has timed out, please try again.")
+        await ctx.send(_("Your response has timed out, please try again."))
         return False
 
     downloader.already_agreed = True