wildmatch test: use more standard shell style

Change the wildmatch test to use more standard shell style, usually we
use "if test" not "if [".

Signed-off-by: Ævar Arnfjörð Bjarmason <[email protected]>
Signed-off-by: Junio C Hamano <[email protected]>

Author: avar

t/t3070-wildmatch.sh

@@ -5,7 +5,8 @@ test_description='wildmatch tests'
 . ./test-lib.sh
 
 match() {
-	if [ $1 = 1 ]; then
+	if test "$1" = 1
+	then
 		test_expect_success "wildmatch:     match '$3' '$4'" "
 			test-wildmatch wildmatch '$3' '$4'
 		"
@@ -17,7 +18,8 @@ match() {
 }
 
 imatch() {
-	if [ $1 = 1 ]; then
+	if test "$1" = 1
+	then
 		test_expect_success "iwildmatch:    match '$2' '$3'" "
 			test-wildmatch iwildmatch '$2' '$3'
 		"
@@ -29,7 +31,8 @@ imatch() {
 }
 
 pathmatch() {
-	if [ $1 = 1 ]; then
+	if test "$1" = 1
+	then
 		test_expect_success "pathmatch:     match '$2' '$3'" "
 			test-wildmatch pathmatch '$2' '$3'
 		"