re-export debug builders in `std::fmt`

diff --git a/src/libcollections/fmt.rs b/src/libcollections/fmt.rs
index b6c4905e41cce75f5a4f3ca2f64951e55da25892..d17bd5cccf50ed00e1b90b8b70d12f16c3ffaa13 100644 (file)
--- a/src/libcollections/fmt.rs
+++ b/src/libcollections/fmt.rs
@@ -481,6 +481,7 @@
 pub use core::fmt::{LowerExp, UpperExp};
 pub use core::fmt::Error;
 pub use core::fmt::{ArgumentV1, Arguments, write, radix, Radix, RadixFmt};
+pub use core::fmt::{DebugList, DebugMap, DebugSet, DebugStruct, DebugTuple};
 
 use string;