<commit_before>package main

import (
	"flag"
	"fmt"
	"os"
	"time"
)

func fatalf(format interface{}, a ...interface{}) {
	fmt.Fprintf(os.Stderr, "%s: %s", os.Args[0], fmt.Sprintf(fmt.Sprint(format), a...))
	os.Exit(1)
}

func main() {
	configDir := flag.String("config", "~/.svnwatch", "the configuration directory for svnwatch")
	interval := flag.Int("interval", 0, "how often to check for updates (0 disables this and exists after a single check)")

	flag.Parse()

	watcher, err := LoadWatcher(*configDir)

	if *interval < 0 {
		fatalf("%s: invalid interval: %d", os.Args[0], *interval)
	}

	if err != nil {
		fatalf(err)
	}

	for {
		if err := watcher.Update(); err != nil {
			fatalf(err)
		}

		watcher.Save("./config")

		if *interval > 0 {
			time.Sleep(time.Duration(*interval) * time.Second)
		} else {
			break
		}
	}
}
<commit_msg>Output a newline after an error<commit_after>package main

import (
	"flag"
	"fmt"
	"os"
	"time"
)

func fatalf(format interface{}, a ...interface{}) {
	fmt.Fprintf(os.Stderr, "%s: %s\n", os.Args[0], fmt.Sprintf(fmt.Sprint(format), a...))
	os.Exit(1)
}

func main() {
	configDir := flag.String("config", "~/.svnwatch", "the configuration directory for svnwatch")
	interval := flag.Int("interval", 0, "how often to check for updates (0 disables this and exists after a single check)")

	flag.Parse()

	watcher, err := LoadWatcher(*configDir)

	if *interval < 0 {
		fatalf("%s: invalid interval: %d", os.Args[0], *interval)
	}

	if err != nil {
		fatalf(err)
	}

	for {
		if err := watcher.Update(); err != nil {
			fatalf(err)
		}

		watcher.Save("./config")

		if *interval > 0 {
			time.Sleep(time.Duration(*interval) * time.Second)
		} else {
			break
		}
	}
}

{'fraction_non_alphanumeric': 0.18229777256740914, 'fraction_numerical': 0.008206330597889801, 'mean_word_length': 3.601078167115903, 'pattern_counts': {'":': 0, '<': 5, '<?xml version=': 0, '>': 5, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
{'dir': 'git-commits-cleaned', 'id': '1940234', 'n_tokens_mistral': 691, 'n_tokens_neox': 632, 'n_words': 163}