use golang flag instead of external getopt library

1 files changed, 1 insertions, 1 deletions

diff --git a/aplus.go b/aplus.go
index 51a5a10..6d308c4 100644
--- a/aplus.go
+++ b/aplus.go
@@ -63,7 +63,7 @@ func submit_code(course_code int, attendance_code string) {
 func launch_aplus(course_code int) string {
         err := init_aplus_toolid(course_code)
         if err != nil {
-                fmt.Println("Failed to get A+ base URL and tool ID")
+                fmt.Println("Failed to get A+ base URL and tool ID. Try again with a different course code.")
                 os.Exit(1)
         }