884 	fprintf(stderr, "\n");  in list_available_languages()
885 	fprintf(stderr, "Scripting language extensions (used in "  in list_available_languages()
889 		fprintf(stderr, "  %-42s [%s]\n", s->spec, s->ops->name);  in list_available_languages()
891 	fprintf(stderr, "\n");  in list_available_languages()
910 			fprintf(stderr, "invalid language specifier");  in parse_scriptname()
917 			fprintf(stderr, "invalid language specifier");  in parse_scriptname()
925 			fprintf(stderr, "invalid script extension");  in parse_scriptname()
930 			fprintf(stderr, "invalid script extension");  in parse_scriptname()
970 			fprintf(stderr, "Invalid event type in field string.\n");  in parse_output_fields()
986 			fprintf(stderr,  in parse_output_fields()
1009 			fprintf(stderr, "Invalid field requested.\n");  in parse_output_fields()
1027 				fprintf(stderr, "\'%s\' not valid for %s events.\n",  in parse_output_fields()
1258 	fprintf(stdout, "List of available trace scripts:\n");  in list_available_scripts()
1262 		fprintf(stdout, "  %-36s %s\n", first_half,  in list_available_scripts()
1601 			fprintf(stderr,  in cmd_script()
1620 			fprintf(stderr, " Couldn't find script %s\n\n See perf"  in cmd_script()
1633 				fprintf(stderr, " %s script requires options."  in cmd_script()
1784 			fprintf(stderr,  in cmd_script()
1804 			fprintf(stderr, "zero-sized file, nothing to do!\n");  in cmd_script()
1810 			fprintf(stderr, "invalid language specifier");  in cmd_script()