docs: fix typos (#21328)

src/nvim/api/vim.c

@@ -1825,7 +1825,7 @@ Dictionary nvim__stats(void)
 ///   - "width"   Requested width of the UI
 ///   - "rgb"     true if the UI uses RGB colors (false implies |cterm-colors|)
 ///   - "ext_..." Requested UI extensions, see |ui-option|
-///   - "chan"    Channel id of remote UI (not present for TUI)
+///   - "chan"    Channel id of remote UI or 0 for TUI
 Array nvim_list_uis(void)
   FUNC_API_SINCE(4)
 {

src/nvim/ex_getln.c

@@ -1691,7 +1691,7 @@ static void command_line_next_histidx(CommandLineState *s, bool next_match)
 }
 
 /// Handle the Up, Down, Page Up, Page down, CTRL-N and CTRL-P key in the
-/// command-line mode. The pressed key is in 'c'.
+/// command-line mode.
 static int command_line_browse_history(CommandLineState *s)
 {
   if (s->histype == HIST_INVALID || get_hislen() == 0 || s->firstc == NUL) {

src/nvim/testdir/test_quickfix.vim

@@ -2959,6 +2959,7 @@ func Test_cwindow_highlight()
   call writefile(lines, 'XtestCwindow')
   let buf = RunVimInTerminal('-S XtestCwindow', #{rows: 12})
   call VerifyScreenDump(buf, 'Test_quickfix_cwindow_1', {})
+
   call term_sendkeys(buf, ":cnext\<CR>")
   call VerifyScreenDump(buf, 'Test_quickfix_cwindow_2', {})