[docs] Remove dangling parenthesis from documentation

Patch by leiteg.
diff --git a/llvm/docs/CommandLine.rst b/llvm/docs/CommandLine.rst
index 7c804d4..a7db630 100644
--- a/llvm/docs/CommandLine.rst
+++ b/llvm/docs/CommandLine.rst
@@ -1277,7 +1277,7 @@
 -------------------------------
 
 Despite all of the built-in flexibility, the CommandLine option library really
-only consists of one function `cl::ParseCommandLineOptions`_) and three main
+only consists of one function `cl::ParseCommandLineOptions`_ and three main
 classes: `cl::opt`_, `cl::list`_, and `cl::alias`_.  This section describes
 these three classes in detail.