Pedant on...

""A real split infinitive, though not desirable in itself, is preferable to either of two things, to real ambiguity and to patent artificiality.""

Commas are often wrongfully used (used wrongfully!) where Colons and Semicolons should be used...

viz...

"A real split infinitive, though not desirable in itself, is preferable to either of two things; to real ambiguity and to patent artificiality."

Now in "English as she is spoke", even though they are separate concepts (the full stop, comma, colon and semicolon!) one can usually get away with this laxity, but in Computer programming languages no such promiscuity of "concept smearing" is allowed - if you want the Astronauts to get back alive...

Pedant off....