An example: the sentence
"Upon finishing these books, I think the reader has a new perspective on history."
Taken literally, it could mean that "I, upon finishing these books, think..." Or it could mean "The reader, upon finishing these books, has a new perspective on history; in my opinion."
Even though the second is pretty clearly the intended meaning, I'd like to call this error what it is.
Thus, I am wondering what this error is called. I'm drawn to making up a name like "spliced verb" or some such, but I'd prefer to be certain.
I know it ought not really matter; but still I'd like as technical and SNOOTy a label as possible.