* fix mantis #20973, return value in unixutils.

git-svn-id: trunk@19893 -

packages/unixutil/src/unixutils.pp

@@ -1178,7 +1178,7 @@ end;
 Function GetUserGroup(Const UserName : String) : String;
 
 begin
-  GetGroupName(GetUserGid(UserName));
+  Result := GetGroupName(GetUserGid(UserName));
 end;