Revert previous change in favour of an explanatory
comment.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67833 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/Makefile.rules b/Makefile.rules
index 22056f7..5856e01 100644
--- a/Makefile.rules
+++ b/Makefile.rules
@@ -293,7 +293,8 @@
 # If DISABLE_ASSERTIONS=1 is specified (make command line or configured),
 # then disable assertions by defining the appropriate preprocessor symbols.
 ifdef DISABLE_ASSERTIONS
-  BuildMode := $(BuildMode)-NoAsserts
+  # Indicate that assertions are turned off using a minus sign
+  BuildMode := $(BuildMode)-Asserts
   CPP.Defines += -DNDEBUG
 else
   CPP.Defines += -D_DEBUG