Fix documentation for Net::SMTPServerBusy

Fixes [Bug #11628]
2019-06-27 16:57:19 -07:00 · 2019-06-27 16:57:19 -07:00 · 14b0c94ac3
--- a/lib/net/smtp.rb
+++ b/lib/net/smtp.rb
@ -38,7 +38,7 @@ module Net
    include SMTPError
  end

-  # Represents SMTP error code 420 or 450, a temporary error.
+  # Represents SMTP error code 4xx, a temporary error.
  class SMTPServerBusy < ProtoServerError
    include SMTPError
  end