Add -x option (like in gcc).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50750 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/tools/llvmc2/Action.cpp b/tools/llvmc2/Action.cpp
index 3d61d37..80531c0 100644
--- a/tools/llvmc2/Action.cpp
+++ b/tools/llvmc2/Action.cpp
@@ -34,7 +34,7 @@
     if (!prog.canExecute())
       throw std::runtime_error("Program '" + name + "' is not executable.");
 
-    // Build the command line vector and redirects.
+    // Build the command line vector and the redirects array.
     const sys::Path* redirects[3] = {0,0,0};
     sys::Path stdout_redirect;