Fix tests as an unprivileged user

Author: svanderburg

tests/webapps-agnostic-sysvinit.nix

@@ -87,6 +87,7 @@ makeTest {
           description = "Unprivileged user";
           home = "/home/unprivileged";
           createHome = true;
+          isNormalUser = true;
         };
       };
 

tests/webapps-sysvinit.nix

@@ -69,6 +69,7 @@ makeTest {
           description = "Unprivileged user";
           home = "/home/unprivileged";
           createHome = true;
+          isNormalUser = true;
         };
       };