What does 'go version' print?
go version go1.2.2 linux/amd64

What steps reproduce the problem?
If possible, include a link to a program on play.golang.org.

1. Printf("test %d", f) where f is float is deemed a type error
2. Scanf("test %d", f) where f is float passes all type checking
3. http://play.golang.org/p/3OkpJ-RQeU
4. code sample will compile and pass go vet but fail at runtime

What happened?
Simple demo program using fmt.Scanf compiles  and passes go vet check but error found at
runtime.  Analogous program using fmt.Printf with same error does not pass go vet check.

What should have happened instead?
go vet should produce similar checks in fmt.Scanf as is does for fmt.Printf

Please provide any additional information below.