Some fixes

Author: emberian

src/libnum/lib.rs

@@ -21,7 +21,7 @@
 //! extern crate num;
 //!
 //! use num::bigint::BigInt;
-//! use num::rational::{Ratio, BigRational}:
+//! use num::rational::{Ratio, BigRational};
 //!
 //! fn approx_sqrt(number: u64, iterations: uint) -> BigRational {
 //!     let start: Ratio<BigInt> = Ratio::from_integer(FromPrimitive::from_u64(number).unwrap());

src/libterm/terminfo/mod.rs

@@ -184,7 +184,7 @@ impl<T: Writer> Terminal<T> for TerminfoTerminal<T> {
                 cap = self.ti.strings.find_equiv(&("op"));
             }
         }
-        let s = cap.map_or(Err("can't find terminfo capability `sgr0`".to_owned()), |op| {
+        let s = cap.map_or(Err("can't find terminfo capability `sgr0`".to_strbuf()), |op| {
             expand(op.as_slice(), [], &mut Variables::new())
         });
         if s.is_ok() {