Documentation: formatting


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172729 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/docs/LanguageExtensions.rst b/docs/LanguageExtensions.rst
index 2abbea7..f32c46b 100644
--- a/docs/LanguageExtensions.rst
+++ b/docs/LanguageExtensions.rst
@@ -140,8 +140,8 @@
 Not all developments systems have the same include files.  The
 :ref:`langext-__has_include` and :ref:`langext-__has_include_next` macros allow
 you to check for the existence of an include file before doing a possibly
-failing ``#include`` directive.  Include file checking macros must be used 
-as expressions in #if or #elif preprocessing directives.
+failing ``#include`` directive.  Include file checking macros must be used
+as expressions in ``#if`` or ``#elif`` preprocessing directives.
 
 .. _langext-__has_include: