Update sed branch tests

testsuite/sed/sed-branch

@@ -1,15 +1 @@
-busybox sed 's/a/1/;t one;p;: one;p'>output <<EOF
-a
-b
-c
-EOF
-cmp -s output - <<EOF
-1
-1
-b
-b
-b
-c
-c
-c
-EOF
+test "$(echo foo | busybox sed 'b one;p;: one')" = foo

testsuite/sed/sed-branch-conditional

@@ -0,0 +1,15 @@
+busybox sed 's/a/1/;t one;p;: one;p'>output <<EOF
+a
+b
+c
+EOF
+cmp -s output - <<EOF
+1
+1
+b
+b
+b
+c
+c
+c
+EOF

testsuite/sed/sed-branch-no-label

@@ -0,0 +1 @@
+test "$(echo foo | busybox sed 'b;p')" = foo