Escape asterisks in notification content

This messes with markdown parsing

Signed-off-by: Mike Beattie <mike@ethernal.org>

notify/telegram.sh

@@ -27,6 +27,7 @@ telegram_send() {
   fi
   _saveaccountconf_mutable TELEGRAM_BOT_CHATID "$TELEGRAM_BOT_CHATID"
 
+  _content="$(printf "%s" "$_content" | sed -e 's/*/\\\\*/')"
   _content="$(printf "*%s*\n%s" "$_subject" "$_content" | _json_encode)"
   _data="{\"text\": \"$_content\", "
   _data="$_data\"chat_id\": \"$TELEGRAM_BOT_CHATID\", "