Fix various typos (#416)

Fix various typos found via `codespell -q 3 -S vendor -L pullrequest,pullrequests`

server/logging/log.go

@@ -28,7 +28,7 @@ type stream struct {
 	sync.Mutex
 
 	path string
-	hist []*Entry
+	list []*Entry
 	subs map[*subscriber]struct{}
 	done chan struct{}
 	wait sync.WaitGroup
@@ -69,7 +69,7 @@ func (l *log) Write(c context.Context, path string, entry *Entry) error {
 		return ErrNotFound
 	}
 	s.Lock()
-	s.hist = append(s.hist, entry)
+	s.list = append(s.list, entry)
 	for sub := range s.subs {
 		go sub.handler(entry)
 	}
@@ -89,8 +89,8 @@ func (l *log) Tail(c context.Context, path string, handler Handler) error {
 		handler: handler,
 	}
 	s.Lock()
-	if len(s.hist) != 0 {
-		sub.handler(s.hist...)
+	if len(s.list) != 0 {
+		sub.handler(s.list...)
 	}
 	s.subs[sub] = struct{}{}
 	s.Unlock()
@@ -132,7 +132,7 @@ func (l *log) Snapshot(c context.Context, path string, w io.Writer) error {
 		return ErrNotFound
 	}
 	s.Lock()
-	for _, entry := range s.hist {
+	for _, entry := range s.list {
 		w.Write(entry.Data)
 		w.Write(cr)
 	}