Corrected typo in DefaultDB parameter alias

Author: mikefrobbins

functions/New-DbaLogin.ps1

@@ -142,7 +142,7 @@ function New-DbaLogin {
  [string]$MapToAsymmetricKey,
  [string]$MapToCredential,
  [object]$Sid,
- [Alias("DefaulDB")]
+ [Alias("DefaultDB")]
  [parameter(ParameterSetName = "Password")]
  [parameter(ParameterSetName = "PasswordHash")]
  [string]$DefaultDatabase,