Remove signing requirement for git tags
diff --git a/make_release b/make_release
index 54c43f0..ef80580 100755
--- a/make_release
+++ b/make_release
@@ -21,7 +21,7 @@
 
 do_tag ()
 {
-    git tag -s -m "tagging $tag" "$tag"
+    git tag -m "tagging $tag" "$tag"
 }
 
 do_tar ()