Squid-2.2.STABLE3: Persistent connections request_timeout
    Persistent connections used a hardcoded timeout of 15 seconds instead
    of request_timeout as documented in squid.conf.

Index: squid/src/client_side.c
diff -u squid/src/client_side.c:1.1.1.40.2.2 squid/src/client_side.c:1.1.1.40.2.3
--- squid/src/client_side.c:1.1.1.40.2.2	Thu May 20 00:46:51 1999
+++ squid/src/client_side.c	Thu May 20 21:00:16 1999
@@ -1575,7 +1575,7 @@
 	/*
 	 * Set the timeout BEFORE calling clientReadRequest().
 	 */
-	commSetTimeout(conn->fd, 15, requestTimeout, conn);
+	commSetTimeout(conn->fd, Config.Timeout.request, requestTimeout, conn);
 	clientReadRequest(conn->fd, conn);	/* Read next request */
 	/*
 	 * Note, the FD may be closed at this point.