cli: colitur easter <year> prints Easter and its anchors

Argv-parsed subcommand; validates the 1583..9999 domain (exit 2 otherwise);
prints 'name YYYY-MM-DD' lines. Cram test covers the output and the exit codes.

1 files changed, 3 insertions, 0 deletions

diff --git a/test/dune b/test/dune
index 3d8df19..8ee8b87 100644
--- a/test/dune
+++ b/test/dune
@@ -1,3 +1,6 @@
 (test
  (name test_colitur)
  (libraries colitur_kernel alcotest qcheck qcheck-alcotest))
+
+(cram
+ (deps %{bin:colitur}))