Merge pull request #893 from infosiftr/httpd

Update httpd to 2.4.16

library/httpd

@@ -3,7 +3,7 @@
 2.2.29: git://github.com/docker-library/httpd@63cd0ad57a12c76ff70d0f501f6c2f1580fa40f5 2.2
 2.2: git://github.com/docker-library/httpd@63cd0ad57a12c76ff70d0f501f6c2f1580fa40f5 2.2
 
-2.4.12: git://github.com/docker-library/httpd@63cd0ad57a12c76ff70d0f501f6c2f1580fa40f5 2.4
-2.4: git://github.com/docker-library/httpd@63cd0ad57a12c76ff70d0f501f6c2f1580fa40f5 2.4
-2: git://github.com/docker-library/httpd@63cd0ad57a12c76ff70d0f501f6c2f1580fa40f5 2.4
-latest: git://github.com/docker-library/httpd@63cd0ad57a12c76ff70d0f501f6c2f1580fa40f5 2.4
+2.4.16: git://github.com/docker-library/httpd@502ecf54a9db85f556028036973a9bce72eae8e8 2.4
+2.4: git://github.com/docker-library/httpd@502ecf54a9db85f556028036973a9bce72eae8e8 2.4
+2: git://github.com/docker-library/httpd@502ecf54a9db85f556028036973a9bce72eae8e8 2.4
+latest: git://github.com/docker-library/httpd@502ecf54a9db85f556028036973a9bce72eae8e8 2.4