fix MAKE-CLF (which prepended superfluous slash to requested resource)

scheme/httpd/logging.scm

@@ -169,11 +169,21 @@
 		(or (maybe-dns-lookup remote-ip) "-")
 		(format-date "[~d/~b/~Y:~H:~M:~S +0000]" (date))     ; +0000 as we don't know
 		(string-join (list request-type 
-				   (string-append "/" requested-file) 
+				   requested-file 
 				   protocol))
 		; Unfortunately, we first split the request line into 
 		; method/request-type etc. and put it together here.
 		; Files conform to CLF are expected to print the original line.
+
+                ; --> Shouldn't be a problem: the original request
+                ; line is reconstructed almost completely:
+                ; requested-file (i.e. http-url->url-string url) is
+                ; exactly the original Request_URI (apart from
+                ; multiple slashes, which are thrown away),
+		; request-type and protocol are the original.  
+		; --> Only number of slashes in Request_URI and
+		; whitespace between parts of Request-Line can differ.
+
 		(or http-code "-")
 		(or filesize "-")
 		(if (string? referer) (string-trim referer) '-)