Rollup merge of #23329 - jbcrail:rm-syntax-highlight, r=sanxiyn

 As suggested by @steveklabnik in #23254, I removed the redundant Rust syntax highlighting from the documentation.

7 files changed, 21 insertions, 20 deletions

diff --git a/src/librand/distributions/exponential.rs b/src/librand/distributions/exponential.rs
index 6820d9c5c48..3180f03cfd3 100644
--- a/src/librand/distributions/exponential.rs
+++ b/src/librand/distributions/exponential.rs
@@ -59,7 +59,7 @@ impl Rand for Exp1 {
 ///
 /// # Examples
 ///
-/// ```rust
+/// ```
 /// use std::rand;
 /// use std::rand::distributions::{Exp, IndependentSample};
 ///
diff --git a/src/librand/distributions/gamma.rs b/src/librand/distributions/gamma.rs
index 6659bf0f3ee..8eaac203fb4 100644
--- a/src/librand/distributions/gamma.rs
+++ b/src/librand/distributions/gamma.rs
@@ -39,7 +39,7 @@ use super::{IndependentSample, Sample, Exp};
 ///
 /// # Examples
 ///
-/// ```rust
+/// ```
 /// use std::rand;
 /// use std::rand::distributions::{IndependentSample, Gamma};
 ///
@@ -186,7 +186,7 @@ impl IndependentSample<f64> for GammaLargeShape {
 ///
 /// # Examples
 ///
-/// ```rust
+/// ```
 /// use std::rand;
 /// use std::rand::distributions::{ChiSquared, IndependentSample};
 ///
@@ -243,7 +243,7 @@ impl IndependentSample<f64> for ChiSquared {
 ///
 /// # Examples
 ///
-/// ```rust
+/// ```
 /// use std::rand;
 /// use std::rand::distributions::{FisherF, IndependentSample};
 ///
@@ -287,7 +287,7 @@ impl IndependentSample<f64> for FisherF {
 ///
 /// # Examples
 ///
-/// ```rust
+/// ```
 /// use std::rand;
 /// use std::rand::distributions::{StudentT, IndependentSample};
 ///
diff --git a/src/librand/distributions/mod.rs b/src/librand/distributions/mod.rs
index 47bc2f5a113..a46709932e2 100644
--- a/src/librand/distributions/mod.rs
+++ b/src/librand/distributions/mod.rs
@@ -93,7 +93,7 @@ pub struct Weighted<T> {
 ///
 /// # Examples
 ///
-/// ```rust
+/// ```
 /// use std::rand;
 /// use std::rand::distributions::{Weighted, WeightedChoice, IndependentSample};
 ///
diff --git a/src/librand/distributions/normal.rs b/src/librand/distributions/normal.rs
index aeca477fb94..d07964624bf 100644
--- a/src/librand/distributions/normal.rs
+++ b/src/librand/distributions/normal.rs
@@ -75,7 +75,7 @@ impl Rand for StandardNormal {
 ///
 /// # Examples
 ///
-/// ```rust
+/// ```
 /// use std::rand;
 /// use std::rand::distributions::{Normal, IndependentSample};
 ///
@@ -123,7 +123,7 @@ impl IndependentSample<f64> for Normal {
 ///
 /// # Examples
 ///
-/// ```rust
+/// ```
 /// use std::rand;
 /// use std::rand::distributions::{LogNormal, IndependentSample};
 ///
diff --git a/src/librand/distributions/range.rs b/src/librand/distributions/range.rs
index 9a2576a87fc..4086e149e78 100644
--- a/src/librand/distributions/range.rs
+++ b/src/librand/distributions/range.rs
@@ -35,7 +35,7 @@ use distributions::{Sample, IndependentSample};
 ///
 /// # Examples
 ///
-/// ```rust
+/// ```
 /// use std::rand::distributions::{IndependentSample, Range};
 ///
 /// fn main() {
diff --git a/src/librand/lib.rs b/src/librand/lib.rs
index c5ff8ffe457..5e52a176c9e 100644
--- a/src/librand/lib.rs
+++ b/src/librand/lib.rs
@@ -148,7 +148,7 @@ pub trait Rng : Sized {
     ///
     /// # Examples
     ///
-    /// ```rust
+    /// ```
     /// use std::rand::{thread_rng, Rng};
     ///
     /// let mut v = [0; 13579];
@@ -183,7 +183,7 @@ pub trait Rng : Sized {
     ///
     /// # Examples
     ///
-    /// ```rust
+    /// ```
     /// use std::rand::{thread_rng, Rng};
     ///
     /// let mut rng = thread_rng();
@@ -228,7 +228,7 @@ pub trait Rng : Sized {
     ///
     /// # Examples
     ///
-    /// ```rust
+    /// ```
     /// use std::rand::{thread_rng, Rng};
     ///
     /// let mut rng = thread_rng();
@@ -246,7 +246,7 @@ pub trait Rng : Sized {
     ///
     /// # Examples
     ///
-    /// ```rust
+    /// ```
     /// use std::rand::{thread_rng, Rng};
     ///
     /// let mut rng = thread_rng();
@@ -260,7 +260,7 @@ pub trait Rng : Sized {
     ///
     /// # Examples
     ///
-    /// ```rust
+    /// ```
     /// use std::rand::{thread_rng, Rng};
     ///
     /// let s: String = thread_rng().gen_ascii_chars().take(10).collect();
@@ -296,7 +296,7 @@ pub trait Rng : Sized {
     ///
     /// # Examples
     ///
-    /// ```rust
+    /// ```
     /// use std::rand::{thread_rng, Rng};
     ///
     /// let mut rng = thread_rng();
@@ -359,7 +359,7 @@ pub trait SeedableRng<Seed>: Rng {
     ///
     /// # Examples
     ///
-    /// ```rust
+    /// ```
     /// use std::rand::{Rng, SeedableRng, StdRng};
     ///
     /// let seed: &[_] = &[1, 2, 3, 4];
@@ -374,7 +374,7 @@ pub trait SeedableRng<Seed>: Rng {
     ///
     /// # Examples
     ///
-    /// ```rust
+    /// ```
     /// use std::rand::{Rng, SeedableRng, StdRng};
     ///
     /// let seed: &[_] = &[1, 2, 3, 4];
@@ -478,7 +478,8 @@ impl Rand for XorShiftRng {
 /// `[0,1)`.
 ///
 /// # Examples
-/// ```rust
+///
+/// ```
 /// use std::rand::{random, Open01};
 ///
 /// let Open01(val) = random::<Open01<f32>>();
@@ -495,7 +496,7 @@ pub struct Open01<F>(pub F);
 ///
 /// # Examples
 ///
-/// ```rust
+/// ```
 /// use std::rand::{random, Closed01};
 ///
 /// let Closed01(val) = random::<Closed01<f32>>();
diff --git a/src/librand/reseeding.rs b/src/librand/reseeding.rs
index f39021d4a5f..81e65da37fc 100644
--- a/src/librand/reseeding.rs
+++ b/src/librand/reseeding.rs
@@ -102,7 +102,7 @@ impl<S, R: SeedableRng<S>, Rsdr: Reseeder<R> + Default>
 ///
 /// # Examples
 ///
-/// ```rust
+/// ```
 /// use std::rand::{Rng, SeedableRng, StdRng};
 /// use std::rand::reseeding::{Reseeder, ReseedingRng};
 ///