fmgr.h

... has this comment (fmgr.h:506):
   /* These are for invocation of a function identified by OID with a     * directly-computed parameter list.  Note
thatneither arguments   nor result     * are allowed to be NULL.  These are essentially FunctionLookup()   followed
*by FunctionCallN().  If the same function is to be invoked   repeatedly,     * do the FunctionLookup() once and then
useFunctionCallN().     */
 


However, there doesn't appear to be any such animal as FunctionLookup(). 
Shouldn't it say fmgr_info() instead?

cheers

andrew