patch 8.2.0363: some Normal mode commands not tested

Problem:    Some Normal mode commands not tested.
Solution:   Add more tests. (Yegappan Lakshmanan, closes #5746)
diff --git a/src/testdir/test_cindent.vim b/src/testdir/test_cindent.vim
index dfafd01..9258192 100644
--- a/src/testdir/test_cindent.vim
+++ b/src/testdir/test_cindent.vim
@@ -5258,9 +5258,18 @@
   set cindent
   norm! f:a:
   call assert_equal('case x:: // x', getline(1))
-
   set cindent&
   bwipe!
 endfunc
 
+" Test for changing multiple lines (using c) with cindent
+func Test_cindent_change_multline()
+  new
+  setlocal cindent
+  call setline(1, ['if (a)', '{', '    i = 1;', '}'])
+  normal! jc3jm = 2;
+  call assert_equal("\tm = 2;", getline(2))
+  close!
+endfunc
+
 " vim: shiftwidth=2 sts=2 expandtab