message: Fix in install/modpagespeed.com-configuration-example.conf
  Replace `ModPagespeedFilters in_place_optimize_for_browser` with `ModPagespeedEnableFilters in_place_optimize_for_browser`
  Fixes
diff: @@ -22,11 +22,9 @@ SetEnvIfNoCase Request_URI \.(?:gif|jpe?g|png)$ no-gzip
  # can set this to "off".
  ModPagespeed on
  -
  # For the http://modpagespeed.com/proxy_external_resource.html demo
  ModPagespeedMapProxyDomain http://modpagespeed.com/static http://www.gstatic.com/psa/static
  -#
  # BrowserMatch CriOS/36[.] mps_disable_webp
  # RequestHeader set PageSpeedFilters -convert_jpeg_to_webp \
  # env=mps_disable_webp
  @@ -206,7 +204,7 @@ SetEnvIfNoCase Request_URI \.(?:gif|jpe?g|png)$ no-gzip
  # User-Agent headers as appropriate. Note that this may require configuring
  # reverse proxy caches such as varnish to handle these headers properly.
  #
  - # ModPagespeedFilters in_place_optimize_for_browser
  + # ModPagespeedEnableFilters in_place_optimize_for_browser
  # Internet Explorer has difficulty caching resources with Vary: headers.
  # They will either be uncached (older IE) or require revalidation. See:
  @@ -311,7 +309,6 @@ SetEnvIfNoCase Request_URI \.(?:gif|jpe?g|png)$ no-gzip
  #
  # ModPagespeedLoadFromFile "http://example.com/static/" "/var/www/static/"
  -
  # Enables server-side instrumentation and statistics. If this rewriter is
  # enabled, then each rewritten HTML page will have instrumentation javacript
  # added that sends latency beacons to /mod_pagespeed_beacon. These
  @@ -410,5 +407,4 @@ SetEnvIfNoCase Request_URI \.(?:gif|jpe?g|png)$ no-gzip
  ModPagespeedEnableFilters resize_images
  ModPagespeedEnableFilters responsive_images
  </LocationMatch>
  -
  </IfModule>
  