Update docs for ENABLE_ASSERTIONS -> DISABLE_ASSERTIONS


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27553 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/docs/GettingStarted.html b/docs/GettingStarted.html
index d0a48e0..e9a725e 100644
--- a/docs/GettingStarted.html
+++ b/docs/GettingStarted.html
@@ -955,9 +955,9 @@
   Perform a Release (Optimized) build.
   <p>
 
-  <dt><tt>gmake ENABLE_OPTIMIZED=1 ENABLE_ASSERTIONS=1</tt>
+  <dt><tt>gmake ENABLE_OPTIMIZED=1 DISABLE_ASSERTIONS=1</tt>
   <dd>
-  Perform a Release (Optimized) build with assertions enabled.
+  Perform a Release (Optimized) build without assertions enabled.
   <p>
 
   <dt><tt>gmake ENABLE_PROFILING=1</tt>