Add missing formatting variable to the Get-ZAVpg function (#41)

* Add missing formatting variable

* Update ReleaseNotes

RELEASENOTES.md

@@ -9,3 +9,4 @@
 ### Zerto Analytics
 
 * Fixed an [issue](https://github.com/ZertoPublic/ZertoApiWrapper/issues/36) where the Zerto Analytics Rest Request function was not checking for the token before attempting a connection.
+* Fixed an [issue](https://github.com/ZertoPublic/ZertoApiWrapper/issues/40) where the `Get-ZAVpg` method would return a 404 error when a `-vpgIdentifier` parameter was specified.

ZertoApiWrapper/Public/Get-ZAVpg.ps1

@@ -28,7 +28,7 @@ function Get-ZAVpg {
         }
 
         vpg {
-            $uri = "{0}/$vpgIdentifier"
+            $uri = "{0}/$vpgIdentifier" -f $uri
         }
     }