Support the gas option --traditional-format which, for some reason, gets
passed to gccas when the --program-prefix option is used to configure CFE.

llvm-svn: 19091
diff --git a/llvm/tools/gccas/gccas.cpp b/llvm/tools/gccas/gccas.cpp
index ef1d8d6..813042c 100644
--- a/llvm/tools/gccas/gccas.cpp
+++ b/llvm/tools/gccas/gccas.cpp
@@ -54,6 +54,9 @@
   cl::opt<bool> 
   NoCompress("disable-compression", cl::init(false),
              cl::desc("Don't ompress the generated bytecode"));
+
+  cl::opt<bool> TF("traditional-format", cl::Hidden,
+    cl::desc("Compatibility option: ignored"));
 }