From 94d858f81a6c8e23e720b01fb7e24614f9a4d3df Mon Sep 17 00:00:00 2001
From: Andrei Beliankou <arbox@yandex.ru>
Date: Tue, 13 Apr 2021 20:03:00 +0200
Subject: [PATCH] Add a space to separate sentences in the error message

---
 lib/set/sorted_set.rb | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/set/sorted_set.rb b/lib/set/sorted_set.rb
index e4e01ba4a8..bc07bc1fb0 100644
--- a/lib/set/sorted_set.rb
+++ b/lib/set/sorted_set.rb
@@ -1,6 +1,6 @@
 begin
   require 'sorted_set'
 rescue ::LoadError
-  raise "The `SortedSet` class has been extracted from the `set` library." \
+  raise "The `SortedSet` class has been extracted from the `set` library. " \
         "You must use the `sorted_set` gem or other alternatives."
 end