use 4 spaces in new code (like in the rest of the file)

run-tests.ps1

@@ -24,11 +24,13 @@ function CheckSubmoduleStatus() {
         {
             # submodule has not been initialized!
             return 2;
-    } elseif ($submoduleStatus -match "\+")
+        } 
+        elseif ($submoduleStatus -match "\+")
         {
             # submodule is not synced:
             return 1;
-    } else {
+        }
+        else {
             # everything fine:
             return 0;
         }