Update vCenter-SSL.ps1

inc/vCenter-SSL.ps1

@@ -143,7 +143,7 @@ $CheckSLL = Get-PACertificate -MainDomain $CommonName
 $RUN=$true
 If ((($CheckSLL).AllSANs) -eq $CommonName) {
     $daysUntilExpiration = (New-TimeSpan -Start (Get-Date) -End $CheckSLL.NotAfter).Days
-    If ($daysUntilExpiration -lt 300) {
+    If ($daysUntilExpiration -lt 30) {
         Write-Host "Renewing cert for '$("$CommonName")' " -ForegroundColor Yellow
         Submit-Renewal $CommonName
     }