in reply to
The printf docs are covered under sprintf.
Quantum Mechanics: The dreams stuff is made of
In addition to the fact that the docs for printf already say the documentation for the format string is in sprintf, adding curlies to disambiguate during interpolation is documented in perldata and has nothing to do with either printf or sprintf.
I make decisions, and my brain carries them out
My brain makes the decisions, and I observe them (if I'm lucky)
I make some decisions, and my brain makes others
My spouse makes decisions and I and my brain carry them out
I wrote a program to relieve me and my brain from the burden of decision-making
The black-helicopter people project the decisions into my brain and then I do as ordered
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