which: update homepage URL

Signed-off-by: Rahul Bedarkar <rahulbedarkar89@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
(cherry picked from commit 8e9a990ae96c2da7f6d237223674d6215ddd5e34)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/which/Config.in

@@ -4,4 +4,4 @@ config BR2_PACKAGE_WHICH
 	help
 	  The standard 'which' utility.
 
-	  http://www.xs4all.nl/~carlo17/which/
+	  http://carlowood.github.io/which/index.html