Fix LLVM Sphinx build; NFC

Addresses the issue found by:
https://lab.llvm.org/buildbot/#/builders/30/builds/35968

diff --git a/llvm/docs/LangRef.rst b/llvm/docs/LangRef.rst
index d426c76..dd18e96 100644 (file)
--- a/llvm/docs/LangRef.rst
+++ b/llvm/docs/LangRef.rst
@@ -24348,7 +24348,7 @@ unspecified sequence of rounding operations.
 
 
 '``llvm.experimental.constrained.ldexp``' Intrinsic
-^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 Syntax:
 """""""