wording fix noticed by Ivan Novick


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37519 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/docs/LangRef.html b/docs/LangRef.html
index 1c587f8..e8813d2 100644
--- a/docs/LangRef.html
+++ b/docs/LangRef.html
@@ -698,7 +698,7 @@
 with a <a href="#terminators">terminator</a> instruction (such as a branch or
 function return).</p>
 
-<p>The first basic block in a program is special in two ways: it is immediately
+<p>The first basic block in a function is special in two ways: it is immediately
 executed on entrance to the function, and it is not allowed to have predecessor
 basic blocks (i.e. there can not be any branches to the entry block of a
 function).  Because the block can have no predecessors, it also cannot have any