Update vCenter-SSL.ps1

inc/vCenter-SSL.ps1

@@ -31,7 +31,11 @@ function Write-Log {
     $ts = Get-Date -Format 'yyyy-MM-dd HH:mm:ss'
     $line = "[$ts] $Level : $Message"
 
-    Write-Host $line -ForegroundColor $ForegroundColor
+    if ($ForegroundColor) {
+        Write-Host $line -ForegroundColor $ForegroundColor
+    } else {
+        Write-Host $line
+    }
     try {
         $dir = Split-Path $LogFile
         if (-not (Test-Path $dir)) {