closealtfile in filename.c in less before 606 omits shellquote calls for LESSCLOSE.
{ "binaries": [ { "binary_name": "less", "binary_version": "551-1ubuntu0.2" } ], "availability": "No subscription required" }
{ "binaries": [ { "binary_name": "less", "binary_version": "590-1ubuntu0.22.04.2" } ], "availability": "No subscription required" }
{ "binaries": [ { "binary_name": "less", "binary_version": "590-2ubuntu1" } ], "availability": "No subscription required" }
{ "binaries": [ { "binary_name": "less", "binary_version": "458-2ubuntu0.1~esm1" } ] }
{ "binaries": [ { "binary_name": "less", "binary_version": "481-2.1ubuntu0.2+esm1" } ], "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro" }
{ "binaries": [ { "binary_name": "less", "binary_version": "487-0.1ubuntu0.1~esm1" } ], "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro" }