Update

src/libstd/sys/unix/thread.rs

@@ -426,8 +426,8 @@ pub mod guard {
 }
 
 // glibc >= 2.15 has a __pthread_get_minstack() function that returns
-// PTHREAD_STACK_MIN plus how many bytes are needed for thread-local
-// storage.  We need that information to avoid blowing up when a small stack
+// PTHREAD_STACK_MIN plus bytes needed for thread-local storage.
+// We need that information to avoid blowing up when a small stack
 // is created in an application with big thread-local storage requirements.
 // See #6233 for rationale and details.
 #[cfg(target_os = "linux")]