Add a link.

llvm-svn: 18316
diff --git a/llvm/docs/CommandGuide/llvm-ranlib.pod b/llvm/docs/CommandGuide/llvm-ranlib.pod
index 18c72d3..db720f6 100644
--- a/llvm/docs/CommandGuide/llvm-ranlib.pod
+++ b/llvm/docs/CommandGuide/llvm-ranlib.pod
@@ -43,7 +43,7 @@
 
 =head1 SEE ALSO
 
-L<llvm-ar|llvm-ar>
+L<llvm-ar|llvm-ar>, L<ranlib(1)>
 
 =head1 AUTHORS