Add versionsort.suffix config to dist clones
diff --git a/Makefile b/Makefile
index fb42f87..0775627 100644
--- a/Makefile
+++ b/Makefile
@@ -64,6 +64,7 @@
 	@rm -rf apache-annotator-$(annotator_vsn)-incubating
 	@git clone \
         --config advice.detachedHead=false \
+        --config versionsort.suffix=-rc \
         --depth 1 \
         --quiet \
         file://"$(shell git rev-parse --show-toplevel)" \