Fix some style nits in tests

Mostly whitespace changes, no functional changes intended.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: John Kennedy <john.kennedy@delphix.com>
Signed-off-by: Ryan Moeller <ryan@iXsystems.com>
Closes #9447

tests/zfs-tests/tests/functional/cli_root/zfs/zfs_002_pos.ksh

@@ -62,7 +62,7 @@ log_assert "With ZFS_ABORT set, all zfs commands can abort and generate a " \
     "core file."
 log_onexit cleanup
 
-#preparation work for testing
+# Preparation work for testing
 corepath=$TESTDIR/core
 if [[ -d $corepath ]]; then
 	rm -rf $corepath

tests/zfs-tests/tests/functional/cli_root/zfs_unmount/zfs_unmount_008_neg.ksh

@@ -95,7 +95,6 @@ for arg in ${badargs[@]}; do
 	log_mustnot eval "zfs unmount $arg $fs >/dev/null 2>&1"
 done
 
-
 # Testing invalid datasets
 for ds in $snap $vol "blah"; do
 	for opt in "" "-f"; do

tests/zfs-tests/tests/functional/history/history_001_pos.ksh

@@ -115,7 +115,7 @@ import_dir=$TEST_BASE_DIR/import_dir.$$
 log_must mkdir $import_dir
 log_must cp $STF_SUITE/tests/functional/history/zfs-pool-v4.dat.Z $import_dir
 log_must uncompress $import_dir/zfs-pool-v4.dat.Z
-upgrade_pool=$(zpool import -d $import_dir | grep "pool:" | awk '{print $2}')
+upgrade_pool=$(zpool import -d $import_dir | awk '/pool:/ { print $2 }')
 log_must zpool import -d $import_dir $upgrade_pool
 run_and_verify -p "$upgrade_pool" "zpool upgrade $upgrade_pool"
 

tests/zfs-tests/tests/functional/history/history_common.kshlib

@@ -110,7 +110,7 @@ function verify_long
 	fi
 
 	typeset suffix=""
-	if [ is_linux ]; then
+	if is_linux; then
 		suffix=":linux"
 	fi
 

tests/zfs-tests/tests/functional/inheritance/inherit_001_pos.ksh

@@ -401,18 +401,17 @@ set -A local_val "off" "on" "off" \
 #
 # Add system specific values
 #
-
-if ! is_linux; then
+if is_linux; then
+	prop+=("acltype" "")
+	def_val+=("off")
+	local_val+=("off")
+else
 	prop+=("aclmode" "" \
 		"mountpoint" "")
 	def_val+=("discard" \
 		"")
 	local_val+=("groupmask" \
 		"$TESTDIR")
-else
-	prop+=("acltype" "")
-	def_val+=("off")
-	local_val+=("off")
 fi