Fix minor typos

library/std/src/io/readbuf.rs

@@ -52,7 +52,7 @@ impl<'a> ReadBuf<'a> {
 
     /// Creates a new `ReadBuf` from a fully uninitialized buffer.
     ///
-    /// Use `assume_init` if part of the buffer is known to be already inintialized.
+    /// Use `assume_init` if part of the buffer is known to be already initialized.
     #[inline]
     pub fn uninit(buf: &'a mut [MaybeUninit<u8>]) -> ReadBuf<'a> {
         ReadBuf { buf, filled: 0, initialized: 0 }
@@ -145,7 +145,7 @@ impl<'a> ReadBuf<'a> {
                 byte.write(0);
             }
 
-            // SAFETY: we just inintialized uninit bytes, and the previous bytes were already init
+            // SAFETY: we just initialized uninit bytes, and the previous bytes were already init
             unsafe {
                 self.assume_init(n);
             }

library/std/src/net/ip.rs

@@ -1826,7 +1826,7 @@ impl fmt::Display for Ipv6Addr {
                 }
             }
         } else {
-            // Slow path: write the address to a local buffer, the use f.pad.
+            // Slow path: write the address to a local buffer, then use f.pad.
             // Defined recursively by using the fast path to write to the
             // buffer.
 

src/test/ui/closures/2229_closure_analysis/wild_patterns.rs

@@ -3,7 +3,7 @@
 #![feature(rustc_attrs)]
 
 // Test to ensure that we can handle cases where
-// let statements create no bindings are intialized
+// let statements create no bindings are initialized
 // using a Place expression
 //
 // Note: Currently when feature `capture_disjoint_fields` is enabled