Squeeze the last bits of `task`s in documentation in favor of `thread`

An automated script was run against the `.rs` and `.md` files,
subsituting every occurrence of `task` with `thread`. In the `.rs`
files, only the texts in the comment blocks were affected.

1 files changed, 3 insertions, 3 deletions

diff --git a/src/libstd/sync/mpsc/shared.rs b/src/libstd/sync/mpsc/shared.rs
index 09a02923f14..41c79dd52c8 100644
--- a/src/libstd/sync/mpsc/shared.rs
+++ b/src/libstd/sync/mpsc/shared.rs
@@ -91,8 +91,8 @@ impl<T> Packet<T> {
     }
 
     // This function is used at the creation of a shared packet to inherit a
-    // previously blocked task. This is done to prevent spurious wakeups of
-    // tasks in select().
+    // previously blocked thread. This is done to prevent spurious wakeups of
+    // threads in select().
     //
     // This can only be called at channel-creation time
     pub fn inherit_blocker(&mut self,
@@ -424,7 +424,7 @@ impl<T> Packet<T> {
         }
     }
 
-    // Cancels a previous task waiting on this port, returning whether there's
+    // Cancels a previous thread waiting on this port, returning whether there's
     // data on the port.
     //
     // This is similar to the stream implementation (hence fewer comments), but