Fix a bug parsing configuration file containers. With a sequence

like this in the config file

       <IfModule mod_kilroy.c>
       any stuff
       </IfModule>
       <IfModule mod_lovejoy.c>
       (blank line)
       any stuff
       </IfModule>

the second container would be terminated at the blank line due to
sediment in the buffer from reading the prior </IfModule> and an
error message would be generated for the real </IfModule> for the
second container.  Also due to this problem, any two characters
could be used for "</" in the close of a container.


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@86233 13f79535-47bb-0310-9956-ffa450edef68