make: prefix errors and such with the right command name

*** 225,235 ****
                          makefile_type = reading_nothing;
                          if ((doname_it) &&
                              (doname(makefile_name, true, false) == build_failed)) {
                                  if (complain) {
                                          (void) fprintf(stderr,
!                                                        gettext("make: Couldn't make `%s'\n"),
                                                         makefile_name->string_mb);
                                  }
                                  max_include_depth--;
                                  makefile_type = save_makefile_type;
                                  return failed;
--- 225,236 ----
                          makefile_type = reading_nothing;
                          if ((doname_it) &&
                              (doname(makefile_name, true, false) == build_failed)) {
                                  if (complain) {
                                          (void) fprintf(stderr,
!                                                        gettext("%s: Couldn't make `%s'\n"),
!                                                        getprogname(),
                                                         makefile_name->string_mb);
                                  }
                                  max_include_depth--;
                                  makefile_type = save_makefile_type;
                                  return failed;