From 1065d7996e359283f0f3e3804cdb77b4829a9191 Mon Sep 17 00:00:00 2001
From: "Adam C. Emerson" <aemerson@redhat.com>
Date: Tue, 8 May 2018 19:23:02 -0400
Subject: [PATCH] rgw: Exceptions should be caught by const reference

/Not/ by value.

Signed-off-by: Adam C. Emerson <aemerson@redhat.com>
---
 src/rgw/rgw_acl_swift.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/rgw/rgw_acl_swift.cc b/src/rgw/rgw_acl_swift.cc
index de489444852..18a99912747 100644
--- a/src/rgw/rgw_acl_swift.cc
+++ b/src/rgw/rgw_acl_swift.cc
@@ -106,7 +106,7 @@ static boost::optional<ACLGrant> referrer_to_grant(std::string url_spec,
 
     grant.set_referer(url_spec, is_negative ? 0 : perm);
     return grant;
-  } catch (std::out_of_range) {
+  } catch (const std::out_of_range&) {
     return boost::none;
   }
 }
-- 
2.39.5