* cli/cli-cmds.c (shell_escape): Use lbasename.
* coffread.c (coff_start_symtab): Constify parameter.
(complete_symtab): Constify `name' parameter.
(coff_symtab_read): Constify `filestring' local.
(coff_getfilename): Constify return and `result' local.
Use lbasename.
* fbsd-nat.c (fbsd_make_corefile_notes): Use lbasename.
* linux-fork.c (info_checkpoints_command): Use lbasename.
* linux-nat.c (linux_nat_make_corefile_notes): Use lbasename.
* minsyms.c (lookup_minimal_symbol): Use lbasename.
* nto-tdep.c (nto_find_and_open_solib): Use lbasename.
* procfs.c (procfs_make_note_section): Use lbasename.
* tui/tui-io.c (printable_part): Constity return and parameter.
Use lbasename.
(print_filename): Constify parameters, and local `s'.
(tui_rl_display_match_list): Constify local `temp'.