Fix rountrips typo in several places

Author: dtolnay

src/lib.rs

@@ -1128,9 +1128,9 @@ impl Literal {
     /// This constructor is similar to those like `Literal::i8_unsuffixed` where
     /// the float's value is emitted directly into the token but no suffix is
     /// used, so it may be inferred to be a `f64` later in the compiler.
-    /// Literals created from negative numbers may not survive rountrips through
-    /// `TokenStream` or strings and may be broken into two tokens (`-` and
-    /// positive literal).
+    /// Literals created from negative numbers may not survive round-trips
+    /// through `TokenStream` or strings and may be broken into two tokens (`-`
+    /// and positive literal).
     ///
     /// # Panics
     ///
@@ -1147,7 +1147,7 @@ impl Literal {
     /// specified is the preceding part of the token and `f64` is the suffix of
     /// the token. This token will always be inferred to be an `f64` in the
     /// compiler. Literals created from negative numbers may not survive
-    /// rountrips through `TokenStream` or strings and may be broken into two
+    /// round-trips through `TokenStream` or strings and may be broken into two
     /// tokens (`-` and positive literal).
     ///
     /// # Panics
@@ -1164,9 +1164,9 @@ impl Literal {
     /// This constructor is similar to those like `Literal::i8_unsuffixed` where
     /// the float's value is emitted directly into the token but no suffix is
     /// used, so it may be inferred to be a `f64` later in the compiler.
-    /// Literals created from negative numbers may not survive rountrips through
-    /// `TokenStream` or strings and may be broken into two tokens (`-` and
-    /// positive literal).
+    /// Literals created from negative numbers may not survive round-trips
+    /// through `TokenStream` or strings and may be broken into two tokens (`-`
+    /// and positive literal).
     ///
     /// # Panics
     ///
@@ -1183,7 +1183,7 @@ impl Literal {
     /// specified is the preceding part of the token and `f32` is the suffix of
     /// the token. This token will always be inferred to be an `f32` in the
     /// compiler. Literals created from negative numbers may not survive
-    /// rountrips through `TokenStream` or strings and may be broken into two
+    /// round-trips through `TokenStream` or strings and may be broken into two
     /// tokens (`-` and positive literal).
     ///
     /// # Panics