Fixes to use Path.Combine

Author: aneillans

src/ServiceManagement/Services/Commands/Websites/PublishAzureWebsiteProject.cs

@@ -89,10 +89,10 @@ public override void ExecuteCmdlet()
 
             if (!File.Exists(fullSetParametersFile))
             {
-                if (File.Exists(Path.GetDirectoryName(fullPackage) + "\\" + fullSetParametersFile))
+                if (File.Exists(Path.Combine(Path.GetDirectoryName(fullPackage), fullSetParametersFile)))
                 {
-                    WriteVerbose("Setting path for Parameters file to local one to package: " + Path.GetDirectoryName(fullPackage) + "\\" + fullSetParametersFile);
-                    fullSetParametersFile = Path.GetDirectoryName(fullPackage) + "\\" + fullSetParametersFile;
+                    WriteVerbose("Setting path for Parameters file to local one to package: " + Path.Combine(Path.GetDirectoryName(fullPackage), fullSetParametersFile));
+                    fullSetParametersFile = Path.Combine(Path.GetDirectoryName(fullPackage),fullSetParametersFile);
                 }
             }