ZTS: Fix in-tree dbufstats test case

Commit a887d653 updated the dbufstats such that escalated privileges
are required.  Since all tests under cli_user are run with normal
privileges move this test case to a location where it will be run
required privileges.

Reviewed-by: John Kennedy <john.kennedy@delphix.com>
Reviewed-by: Ryan Moeller <ryan@ixsystems.com>
Reviewed-by: Michael Niewöhner <foss@mniewoehner.de>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #9118
Closes #9196

tests/zfs-tests/tests/functional/arc/Makefile.am

@@ -3,4 +3,5 @@ dist_pkgdata_SCRIPTS = \
 	cleanup.ksh \
 	setup.ksh \
 	dbufstats_001_pos.ksh \
-	dbufstats_002_pos.ksh
+	dbufstats_002_pos.ksh \
+	dbufstats_003_pos.ksh

tests/zfs-tests/tests/functional/arc/dbufstats_003_pos.ksh

@@ -33,11 +33,11 @@ log_assert "dbufstat generates output and doesn't return an error code"
 
 typeset -i i=0
 while [[ $i -lt ${#args[*]} ]]; do
-        log_must eval "sudo dbufstat ${args[i]} > /dev/null"
+        log_must eval "dbufstat ${args[i]} >/dev/null"
         ((i = i + 1))
 done
 
 # A simple test of dbufstat filter functionality
-log_must eval "sudo dbufstat -F object=10,dbc=1,pool=$TESTPOOL > /dev/null"
+log_must eval "dbufstat -F object=10,dbc=1,pool=$TESTPOOL >/dev/null"
 
 log_pass "dbufstat generates output and doesn't return an error code"

tests/zfs-tests/tests/functional/cli_user/misc/Makefile.am

@@ -45,8 +45,7 @@ dist_pkgdata_SCRIPTS = \
 	zpool_upgrade_001_neg.ksh \
 	arcstat_001_pos.ksh \
 	arc_summary_001_pos.ksh \
-	arc_summary_002_neg.ksh \
-	dbufstat_001_pos.ksh
+	arc_summary_002_neg.ksh
 
 dist_pkgdata_DATA = \
 	misc.cfg