fixed oversight bug where inspecting Net::LDAP with anonymous auth returned nil

Author: astockwell

lib/net/ldap.rb

@@ -1197,7 +1197,9 @@ def paged_searches_supported?
 
   # Mask auth password
   def inspect
-    super.gsub @auth[:password], "*******" if @auth[:password]
+    inspected = super
+    inspected.gsub! @auth[:password], "*******" if @auth[:password]
+    inspected
   end
 
   private

test/test_ldap.rb

@@ -60,6 +60,7 @@ def test_instrument_search_with_size
 
   def test_obscure_auth
     password = "opensesame"
+    assert_include(@subject.inspect, "anonymous")
     @subject.auth "joe_user", password
     assert_not_include(@subject.inspect, password)
   end