[commit: base] master: doc tweaks (65201a1)

[Simon Marlow]

Repository : ssh://darcs.haskell.org//srv/darcs/packages/base

On branch  : master

http://hackage.haskell.org/trac/ghc/changeset/65201a15399acab917de316fcaa175be8e6a5cfd

>---------------------------------------------------------------

commit 65201a15399acab917de316fcaa175be8e6a5cfd
Author: Simon Marlow <marlowsd at gmail.com>
Date:   Thu Apr 12 11:19:04 2012 +0100

    doc tweaks

>---------------------------------------------------------------

 System/Mem/Weak.hs |    7 ++++---
 1 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/System/Mem/Weak.hs b/System/Mem/Weak.hs
index a2e6f72..4003a74 100644
--- a/System/Mem/Weak.hs
+++ b/System/Mem/Weak.hs
@@ -139,8 +139,9 @@ The behaviour is simply this:
 This behaviour depends on what it means for a key to be reachable.
 Informally, something is reachable if it can be reached by following
 ordinary pointers from the root set, but not following weak pointers.
-We define reachability more precisely as follows A heap object is
-reachable if:
+We define reachability more precisely as follows.
+
+A heap object is /reachable/ if:
 
  * It is a member of the /root set/.
 
@@ -149,6 +150,6 @@ reachable if:
 
  * It is a weak pointer object whose key is reachable.
 
- * It is the value or finalizer of an object whose key is reachable.
+ * It is the value or finalizer of a weak pointer object whose key is reachable.
 -}