check in stack.yaml.lock

.gitignore

@@ -2,4 +2,3 @@
 dist/
 bin/
 .stack-work/
-stack*.yaml.lock

stack.yaml.lock

+# This file was autogenerated by Stack.
+# You should not edit this file by hand.
+# For more information, please see the documentation at:
+#   https://docs.haskellstack.org/en/stable/lock_files
+
+packages:
+- completed:
+    hackage: Unique-0.4.7.6@sha256:a1ff411f4d68c756e01e8d532fbe8e57f1ac77f2cc0ee8a999770be2bca185c5,2723
+    pantry-tree:
+      size: 1366
+      sha256: 587d279ff94e8d6f43da3710634ca3611fa4f6886b1e541a73c69303c00297b9
+  original:
+    hackage: Unique-0.4.7.6
+snapshots:
+- completed:
+    size: 497508
+    url: https://raw.githubusercontent.com/commercialhaskell/stackage-snapshots/master/lts/13/17.yaml
+    sha256: 3d8fabe77d4f7618554cfb1001c820b9859820b8639bfd6f02a1c41660afb53b
+  original: lts-13.17