ignore stack.yaml.lock

Stack 2.1.1 introduced lock files. I'm not sure whether to include them in the repository, here's some discussion on the subject: commercialhaskell/stack#4795
egor-tensin · Aug 21, 2019 · f88dea6 · f88dea6
1 parent 3a62594
commit f88dea6
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/.gitignore b/.gitignore
@@ -1 +1,2 @@
 /.stack-work/
+/stack.yaml.lock