From 0552fe4d5bf800130f3950ce95aa23854362df10 Mon Sep 17 00:00:00 2001
From: Ola Nilsson <ola.nilsson@gmail.com>
Date: Wed, 28 Aug 2024 00:02:25 +0200
Subject: [PATCH] Add :to-be-close-to docstring

---
 buttercup.el | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/buttercup.el b/buttercup.el
index 82a1dd8..64b16ae 100644
--- a/buttercup.el
+++ b/buttercup.el
@@ -614,6 +614,8 @@ See also `buttercup-define-matcher'."
   :expect-mismatch-phrase "Expected `%A' < %b, but `%A' was %a.")
 
 (buttercup-define-matcher :to-be-close-to (a b precision)
+  "Verify that |A-B| < 10^-PRECISION.
+\(expect A :to-be-close-to B PRECISION)"
   (cl-destructuring-bind
       (precision (a-expr . a) (_b-expr . b))
       (cons (funcall precision)