Fix a typo in a devel/upload comment

Files are uploaded to $prefix/sbin, not $prefix/bin

Reviewed-by: iustinp

devel/upload

@@ -23,7 +23,7 @@
 # Usage: upload.sh node-{1,2,3}
 # it will upload the python libraries to
 # $prefix/lib/python2.4/site-packages/ganeti and the command line utils to
-# $prefix/bin. It needs passwordless root login to the nodes.
+# $prefix/sbin. It needs passwordless root login to the nodes.
 
 set -e
 TXD=`mktemp -d`