--- a/make/RunTestsPrebuiltSpec.gmk	Wed Oct 03 17:17:47 2018 -0700
+++ b/make/RunTestsPrebuiltSpec.gmk	Fri Oct 05 09:59:30 2018 -0700
@@ -180,5 +180,5 @@
   EGREP := ggrep -E
   FGREP := grep -F
   SED := gsed
-  TAR := GTAR
+  TAR := gtar
 endif