testing (reverted)

llvm-svn: 64991
diff --git a/clang/lib/Headers/tgmath.h b/clang/lib/Headers/tgmath.h
index f64f117..e1a0023 100644
--- a/clang/lib/Headers/tgmath.h
+++ b/clang/lib/Headers/tgmath.h
@@ -38,7 +38,7 @@
 // promotion
 
 typedef void _Argument_type_is_not_arithmetic;
-static _Argument_type_is_not_arithmetic __tg_promote(...) \
+static _Argument_type_is_not_arithmetic __tg_promote(...)
   __attribute__((__unavailable__,__overloadable__));
 static double               _TG_ATTRSp __tg_promote(int);
 static double               _TG_ATTRSp __tg_promote(unsigned int);