Add null check in Contains() method
authoriSazonov <darpa@yandex.ru>
Tue, 28 Aug 2018 14:40:05 +0000 (19:40 +0500)
committeriSazonov <darpa@yandex.ru>
Tue, 28 Aug 2018 15:40:58 +0000 (20:40 +0500)
commit0036840235cac01d6383a9f3536905806ee76e89
tree5d692007f21b4e59b832c8d361b4e3af794de5fa
parentcf8d616c9e39ad189fd62e022347b21716b5c591
Add null check in Contains() method

Commit migrated from https://github.com/dotnet/corefx/commit/5c9ac81ed5cef7b17b0e5a432e7c0a0a4688a81a
src/libraries/System.Collections.Specialized/src/System/Collections/Specialized/OrderedDictionary.cs