[ledger] minor fix

plugins/ledger.lisp

@@ -170,7 +170,8 @@
                       (text-chunks (split-sequence:split-sequence
                                     #\Newline
                                     (pta-ledger:journal-balance journal query))
-                                   :text-sep #\Newline)
+                                   :text-sep "
+")
                       :parse-mode "markdown")))
 
 (def-message-cmd-handler handler-balance (:balance :bal)