4-multiline.tush

OK 1
====

$ echo 111; \
  echo 222
| 111
| 222

OK 2
====

$ echo 111; \
  echo 222; \
  echo 333 >&2 ; \
  exit 7
| 111
| 222
@ 333
? 7

Test err
========

$ echo 111; \
  echo 222
| 111
| 777