*: reflow comments to 80 characters

This reformats the entire Metropolis codebase to have comments no longer
than 80 characters, implementing CR/66.

This has been done half manually, as we don't have a good integration
between commentwrap/Bazel, but that can be implemented if we decide to
go for this tool/limit.

Change-Id: If1fff0b093ef806f5dc00551c11506e8290379d0
diff --git a/intellij/localconfig/watchers/filewatchers.go b/intellij/localconfig/watchers/filewatchers.go
index f31a26a..dd1810c 100644
--- a/intellij/localconfig/watchers/filewatchers.go
+++ b/intellij/localconfig/watchers/filewatchers.go
@@ -86,7 +86,8 @@
 		return fmt.Errorf("failed to serialize: %w", err)
 	}
 
-	// Atomic write is needed, IntelliJ has inotify watches on its config and reloads (but not applies) instantly.
+	// Atomic write is needed, IntelliJ has inotify watches on its config and reloads
+	// (but not applies) instantly.
 	tmpPath := filename + ".tmp"
 	defer os.Remove(tmpPath)
 	if err := ioutil.WriteFile(tmpPath, []byte(xml.Header+string(b)), 0664); err != nil {
@@ -99,7 +100,8 @@
 	return nil
 }
 
-// RewriteConfig adds our watchers to projectDir's watchers config, overwriting existing entries with the same name.
+// RewriteConfig adds our watchers to projectDir's watchers config, overwriting
+// existing entries with the same name.
 func RewriteConfig(projectDir string) error {
 	template, err := readConfig(path.Join(projectDir, templatePath))
 	if err != nil {