Merge pull request dotnet/corefx#34268 from AfsanehR/CredentialsFixMaster
authorKeerat Singh <v-kesin@microsoft.com>
Tue, 8 Jan 2019 23:59:29 +0000 (15:59 -0800)
committerGitHub <noreply@github.com>
Tue, 8 Jan 2019 23:59:29 +0000 (15:59 -0800)
Fix passing null for credentials in SqlConnectionPoolKey in master

Commit migrated from https://github.com/dotnet/corefx/commit/2ff4a40aa0865e4bcaf85016188c77d52b24ec56


Trivial merge