Fix placement of output in TUI mode
The fix for PR tui/28819 regressed gdb command output a bit. In "nonl" mode, pressing the Enter key will result in a newline not being echoed properly, so that gdb output for the command will begin on the same line as the input. This patch changes gdb_wgetch to echo the newline. I have only tested this interactively, as the TUI doesn't have automated tests in general. gdb/ChangeLog 2019-01-14 Tom Tromey <firstname.lastname@example.org> PR tui/28819: * tui/tui-io.c (gdb_wgetch): Print \r when needed.