correct typos

Author: joboet

library/std/src/sys/pal/unix/stack_overflow/thread_info.rs

@@ -51,7 +51,7 @@ impl Drop for UnlockOnDrop {
     }
 }
 
-/// Get the current thread's infoformation, if available.
+/// Get the current thread's information, if available.
 ///
 /// Calling this function might freeze other threads if they attempt to modify
 /// their thread information. Thus, the caller should ensure that the process
@@ -113,7 +113,7 @@ pub fn set_current_info(guard_page_range: Range<usize>, thread_name: Option<Box<
     let _lock_guard = LOCK.lock();
     let _spin_guard = spin_lock_in_setup(this);
 
-    // SAFETY: we own the spin lock, so `THREAD_INFO` cannot not be aliased.
+    // SAFETY: we own the spin lock, so `THREAD_INFO` cannot be aliased.
     let thread_info = unsafe { &mut *(&raw mut THREAD_INFO) };
     thread_info.insert(this, ThreadInfo { guard_page_range, thread_name });
 }