mdocml: If PATH_INFO contains a complete and correct path to a manual

mdocml: If PATH_INFO contains a complete and correct path to a manual

[schwarze]

Log Message:
-----------
If PATH_INFO contains a complete and correct path to a manual page 
file, for example "/OpenBSD-5.9/man2/pledge.2", no database query
is needed and the file is delivered directly.

But even in this case, let's parse the PATH_INFO and fill the query
structure such that the search form at the top of the result page 
gets pre-filled with useful values.

Modified Files:
--------------
    mdocml:
        cgi.c

Revision Data
-------------
Index: cgi.c
===================================================================
RCS file: /home/cvs/mdocml/mdocml/cgi.c,v
retrieving revision 1.123
retrieving revision 1.124
diff -Lcgi.c -Lcgi.c -u -p -r1.123 -r1.124
--- cgi.c
+++ cgi.c
@@ -1037,9 +1037,10 @@ main(void)
 	else if (*path == '/')
 		path++;
 
-	if (*path != '\0' && access(path, F_OK) == -1) {
+	if (*path != '\0') {
 		path_parse(&req, path);
-		path = "";
+		if (access(path, F_OK) == -1)
+			path = "";
 	} else if ((querystring = getenv("QUERY_STRING")) != NULL)
 		http_parse(&req, querystring);
 
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