testsuite/paste/paste-pairs - busybox - Git at Google

 cat > foo <<EOF
 foo1
 bar1
 foo2
 bar2
 foo3
 EOF

 cat > bar <<EOF
 foo1	bar1
 foo2	bar2
 foo3
 EOF

 busybox paste -s -d "\t\n" foo > baz
 cmp bar baz
	cat > foo <<EOF
	foo1
	bar1
	foo2
	bar2
	foo3
	EOF

	cat > bar <<EOF
	foo1 bar1
	foo2 bar2
	foo3
	EOF

	busybox paste -s -d "\t\n" foo > baz
	cmp bar baz