Fixed order of code

Signed-off-by: Andrew Innes <andrew.c12@gmail.com>

Author: andrewc12

module/zfs/arc.c

@@ -419,12 +419,12 @@ boolean_t arc_warm;
 /*
  * These tunables are for performance analysis.
  */
+unsigned long zfs_arc_max = 0;
+unsigned long zfs_arc_min = 0;
 ZFS_MODULE_ULONG zfs_arc_meta_limit = 0;
 ZFS_MODULE_ULONG zfs_arc_meta_min = 0;
 static ZFS_MODULE_ULONG zfs_arc_dnode_limit = 0;
 static ZFS_MODULE_ULONG zfs_arc_dnode_reduce_percent = 10;
-unsigned long zfs_arc_max = 0;
-unsigned long zfs_arc_min = 0;
 static uint_t zfs_arc_grow_retry = 0;
 static uint_t zfs_arc_shrink_shift = 0;
 static uint_t zfs_arc_p_min_shift = 0;