Combine the identical if-else branches in client/client.go#141

chengfang wants to merge 1 commit intoopsgenie:masteropsgenie/opsgenie-go-sdk-v2:masterfrom

chengfang:client.go.identical.if.elsechengfang/opsgenie-go-sdk-v2:client.go.identical.if.elseCopy head branch name to clipboard