fix dangling pointer and argv off by one errors.  Add support for --disable-inlining

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53249 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/tools/lto/lto.cpp b/tools/lto/lto.cpp
index b674f31..227823f 100644
--- a/tools/lto/lto.cpp
+++ b/tools/lto/lto.cpp
@@ -237,6 +237,10 @@
     return cg->compile(length, sLastErrorString);
 }
 
+
+//
+// Used to pass extra options to the code generator
+//
 extern void
 lto_codegen_debug_options(lto_code_gen_t cg, const char * opt)
 {