[PATCH] trivial: fix old URLs in initrd doc

From: Rusty Russell <rusty@rustcorp.com.au>

From:  Marco Cova <marco.cova@studio.unibo.it>

Documentation/initrd.txt

@@ -333,8 +333,8 @@ Resources
 ---------
 
 [1] Almesberger, Werner; "Booting Linux: The History and the Future"
-    ftp://icaftp.epfl.ch/pub/people/almesber/booting/bootinglinux-current.ps.gz
+    http://www.almesberger.net/cv/papers/ols2k-9.ps.gz
 [2] newlib package (experimental), with initrd example
-    ftp://icaftp.epfl.ch/pub/people/almesber/misc/newlib-linux/
+    http://sources.redhat.com/newlib/
 [3] Brouwer, Andries; "util-linux: Miscellaneous utilities for Linux"
     ftp://ftp.win.tue.nl/pub/linux-local/utils/util-linux/