I just found the following function:

,----
| C-c C-v C-c runs the command org-babel-check-src-block, which is an
| interactive autoloaded compiled Lisp function in `ob-core.el'.
| 
| It is bound to C-c C-v c, C-c C-v C-c.
| 
| (org-babel-check-src-block)
| 
| Check for misspelled header arguments in the current code block.
`----

I'm gonna use it a lot!

Cheers,

Rainer

-- 
Rainer M. Krug
email: Rainer<at>krugs<dot>de
PGP: 0x0F52F982