vim-patch:8.2.2829: some comments are not correct or clear

Problem:    Some comments are not correct or clear.
Solution:   Adjust the comments.  Add test for cursor position.
df36514a64

src/nvim/regexp.c

@@ -3436,7 +3436,7 @@ static long bt_regexec_multi(regmmatch_T *rmp, win_T *win, buf_T *buf,
 }
 
 /// Match a regexp against a string ("line" points to the string) or multiple
-/// lines ("line" is NULL, use reg_getline()).
+/// lines (if "line" is NULL, use reg_getline()).
 /// @return 0 for failure, or number of lines contained in the match.
 static long bt_regexec_both(char_u *line,
                             colnr_T col,      // column to start search

src/nvim/regexp_nfa.c

@@ -6491,7 +6491,7 @@ static long nfa_regtry(nfa_regprog_T *prog,
 }
 
 /// Match a regexp against a string ("line" points to the string) or multiple
-/// lines ("line" is NULL, use reg_getline()).
+/// lines (if "line" is NULL, use reg_getline()).
 ///
 /// @param line String in which to search or NULL
 /// @param startcol Column to start looking for match

src/nvim/testdir/test_exec_while_if.vim

@@ -1,6 +1,6 @@
-" Test for :execute, :while and :if
+" Test for :execute, :while, :for and :if
 
-function Test_exec_while_if()
+func Test_exec_while_if()
   new
 
   let i = 0
@@ -50,4 +50,6 @@ function Test_exec_while_if()
         \ "7x999999999888888887777777666666555554444333221",
         \ "8",
         \ "9x"], getline(1, 10))
-endfunction
+endfunc
+
+" vim: shiftwidth=2 sts=2 expandtab

src/nvim/testdir/test_substitute.vim

@@ -754,4 +754,13 @@ func Test_submatch_list_concatenate()
   call assert_equal(substitute('A1', pat, Rep, ''), "[['A1'], ['1']]")
 endfunc
 
+func Test_substitute_skipped_range()
+  new
+  if 0
+    /1/5/2/2/\n
+  endif
+  call assert_equal([0, 1, 1, 0, 1], getcurpos())
+  bwipe!
+endfunc
+
 " vim: shiftwidth=2 sts=2 expandtab