Delete -std-compile-opts.

These days -std-compile-opts was just a silly alias for -O3.

llvm-svn: 219951
diff --git a/llvm/docs/HowToSubmitABug.rst b/llvm/docs/HowToSubmitABug.rst
index 702dc0c..9f997d2 100644
--- a/llvm/docs/HowToSubmitABug.rst
+++ b/llvm/docs/HowToSubmitABug.rst
@@ -89,7 +89,7 @@
 
 .. code-block:: bash
 
-   opt -std-compile-opts -debug-pass=Arguments foo.bc -disable-output
+   opt -O3 -debug-pass=Arguments foo.bc -disable-output
 
 This command should do two things: it should print out a list of passes, and
 then it should crash in the same way as clang.  If it doesn't crash, please