syntax: Remove usage of fmt!
rustc: Remove usage of fmt!
rusti: Remove usage of fmt!
rustdoc: Remove usage of fmt!
rustpkg: Remove uses of fmt!
compiletest: Remove usage of fmt!
rpass: Remove usage of fmt!
cfail: Remove usage of fmt!
rfail: Remove usage of fmt!
bench: Remove usage of fmt!
tutorial: Remove usage of fmt!
pretty: Remove usage of fmt!