patch 9.1.0574: ex: wrong handling of commands after bar

Problem:  ex: wrong handling of commands after bar
Solution: for :append, :insert and :change use the text after the bar
          as input for those commands. This is what POSIX requests.
          (Mohamed Akram)

See the POSIX Spec:
https://pubs.opengroup.org/onlinepubs/9699919799/utilities/ex.html#tag_20_40_13_03
Section 12.c

closes: #15229

Signed-off-by: Mohamed Akram <mohd.akram@outlook.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/src/testdir/test_ex_mode.vim b/src/testdir/test_ex_mode.vim
index b0e5d81..c4f82d3 100644
--- a/src/testdir/test_ex_mode.vim
+++ b/src/testdir/test_ex_mode.vim
Binary files differ