ghci -debug generates slightly odd message

stefan@stefans:~$ ghci -debug fibbench/Y.hs
   ___         ___ _
  / _ \ /\  /\/ __(_)
 / /_\// /_/ / /  | |      GHC Interactive, version 6.7.20070213, for Haskell 98.
/ /_\\/ __  / /___| |      http://www.haskell.org/ghc/
\____/\/ /_/\____/|_|      Type :? for help.

ghc-6.7.20070213: --interactive can't be used with -prof, -ticky, or -unreg.
Usage: For basic information, try the `--help' option.
stefan@stefans:~$

Extremely similar messages are seen with 6.6 and 6.4.2. IMO the message should list -debug.

Trac metadata

Trac field	Value
Version	6.6
Type	Bug
TypeOfFailure	OtherFailure
Priority	lowest
Resolution	Unresolved
Component	GHCi
Test case
Differential revisions
BlockedBy
Related
Blocking
CC
Operating system	Unknown
Architecture	Unknown

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ghci -debug generates slightly odd message