Add liballoc doc panic detail according to RawVec

Author: pickfire

src/liballoc/raw_vec.rs

@@ -80,9 +80,7 @@ impl<T> RawVec<T, Global> {
     ///
     /// # Panics
     ///
-    /// * Panics if the requested capacity exceeds `usize::MAX` bytes.
-    /// * Panics on 32-bit platforms if the requested capacity exceeds
-    ///   `isize::MAX` bytes.
+    /// Panics if the requested capacity exceeds `isize::MAX` bytes.
     ///
     /// # Aborts
     ///
@@ -249,9 +247,7 @@ impl<T, A: AllocRef> RawVec<T, A> {
     ///
     /// # Panics
     ///
-    /// * Panics if the requested capacity exceeds `usize::MAX` bytes.
-    /// * Panics on 32-bit platforms if the requested capacity exceeds
-    ///   `isize::MAX` bytes.
+    /// Panics if the new capacity exceeds `isize::MAX` bytes.
     ///
     /// # Aborts
     ///
@@ -316,9 +312,7 @@ impl<T, A: AllocRef> RawVec<T, A> {
     ///
     /// # Panics
     ///
-    /// * Panics if the requested capacity exceeds `usize::MAX` bytes.
-    /// * Panics on 32-bit platforms if the requested capacity exceeds
-    ///   `isize::MAX` bytes.
+    /// Panics if the new capacity exceeds `isize::MAX` bytes.
     ///
     /// # Aborts
     ///

src/liballoc/vec.rs

@@ -491,7 +491,7 @@ impl<T> Vec<T> {
     ///
     /// # Panics
     ///
-    /// Panics if the new capacity overflows `usize`.
+    /// Panics if the new capacity exceeds `isize::MAX` bytes.
     ///
     /// # Examples
     ///
@@ -1188,7 +1188,7 @@ impl<T> Vec<T> {
     ///
     /// # Panics
     ///
-    /// Panics if the number of elements in the vector overflows a `usize`.
+    /// Panics if the new capacity exceeds `isize::MAX` bytes.
     ///
     /// # Examples
     ///