Fix a small typo.

llvm-svn: 13743
diff --git a/llvm/docs/GarbageCollection.html b/llvm/docs/GarbageCollection.html
index 39ddeb8..7502fb6 100644
--- a/llvm/docs/GarbageCollection.html
+++ b/llvm/docs/GarbageCollection.html
@@ -190,7 +190,7 @@
    ...
 
    ;; "CodeBlock" is the block corresponding to the start
-   ;;  of the scope scope above.
+   ;;  of the scope above.
 CodeBlock:
    ;; Initialize the object, telling LLVM that it is now live.
    ;; Java has type-tags on objects, so it doesn't need any