Fix suffix

sdk/2.1/docs/man/xhtml/.htaccess

diff --git a/sdk/2.1/docs/man/xhtml/.htaccess b/sdk/2.1/docs/man/xhtml/.htaccess
index e355fdc..e68a851 100644
--- a/sdk/2.1/docs/man/xhtml/.htaccess
+++ b/sdk/2.1/docs/man/xhtml/.htaccess
@@ -14,4 +14,4 @@
 RewriteCond %{ENV:REDIRECT_STATUS} 200
 RewriteRule ^ - [L]
 
-RewriteRule ^(redir|fred).xhtml$ write_pipe.xhtml [NE,L,R=301]
+RewriteRule ^(redir|fred).html$ write_pipe.html [NE,L,R=301]