diff --git a/3/s/slf b/3/s/slf
new file mode 100644
index 00000000000..533ba3c9bd5
--- /dev/null
+++ b/3/s/slf
@@ -0,0 +1 @@
+{"name":"slf","vers":"0.0.1","deps":[],"cksum":"48d26472460e923e54d2872534c8659e35f282a6fa1af41a584121af3e429269","features":{},"yanked":false}