Updating e2e to match bug fix in procfs (see: procfs/pull/343)

Signed-off-by: Juan Bran <juan.bran@verizondigitalmedia.com>

collector/fixtures/e2e-output.txt

@@ -3001,7 +3001,7 @@ node_xfs_inode_operation_reclaims_total{device="sda1"} 0
 node_xfs_inode_operation_recycled_total{device="sda1"} 0
 # HELP node_xfs_read_calls_total Number of read(2) system calls made to files in a filesystem.
 # TYPE node_xfs_read_calls_total counter
-node_xfs_read_calls_total{device="sda1"} 28
+node_xfs_read_calls_total{device="sda1"} 0
 # HELP node_xfs_vnode_active_total Number of vnodes not on free lists for a filesystem.
 # TYPE node_xfs_vnode_active_total counter
 node_xfs_vnode_active_total{device="sda1"} 4
@@ -3025,7 +3025,7 @@ node_xfs_vnode_release_total{device="sda1"} 1
 node_xfs_vnode_remove_total{device="sda1"} 1
 # HELP node_xfs_write_calls_total Number of write(2) system calls made to files in a filesystem.
 # TYPE node_xfs_write_calls_total counter
-node_xfs_write_calls_total{device="sda1"} 0
+node_xfs_write_calls_total{device="sda1"} 28
 # HELP node_zfs_abd_linear_cnt kstat.zfs.misc.abdstats.linear_cnt
 # TYPE node_zfs_abd_linear_cnt untyped
 node_zfs_abd_linear_cnt 62