doc: fix various typos

Found via `codespell -q 3 -L atleast,iinclude,ist,programm,reenable,ser,uptodate`

changelog/unreleased/pull-5170

@@ -3,7 +3,7 @@ Bugfix: Prevent Windows VSS event log 8194 warnings for backup with fs snapshot
 When running `restic backup` with `--use-fs-snapshot` flag in Windows with admin rights, event logs like
 ```
 Volume Shadow Copy Service error: Unexpected error querying for the IVssWriterCallback interface.  hr = 0x80070005, Access is denied.
-. This is often caused by incorrect security settings in either the writer or requestor process. 
+. This is often caused by incorrect security settings in either the writer or requester process. 
 
 Operation:
    Gathering Writer Data

cmd/restic/global.go

@@ -43,7 +43,7 @@ import (
 	"golang.org/x/term"
 )
 
-// ErrNoRepository is used to report if opening a repsitory failed due
+// ErrNoRepository is used to report if opening a repository failed due
 // to a missing backend storage location or config file
 var ErrNoRepository = errors.New("repository does not exist")
 

cmd/restic/main.go

@@ -174,7 +174,7 @@ func main() {
 	if err == nil {
 		err = ctx.Err()
 	} else if err == ErrOK {
-		// ErrOK overwrites context cancelation errors
+		// ErrOK overwrites context cancellation errors
 		err = nil
 	}
 

doc/050_restore.rst

@@ -148,7 +148,7 @@ options will be deleted. For example, the command
 would only delete files within ``/tmp/restore-work/foo``.
 
 When using ``--target / --delete`` then the ``restore`` command only works if either an ``--include``
-or ``--exclude`` option is also specified. This ensures that one cannot accidentaly delete
+or ``--exclude`` option is also specified. This ensures that one cannot accidentally delete
 the whole system.
 
 Dry run

internal/backend/retry/backend_retry_test.go

@@ -374,7 +374,7 @@ func TestBackendLoadCircuitBreakerCancel(t *testing.T) {
 	err := retryBackend.Load(cctx, backend.Handle{Name: "other"}, 0, 0, nilRd)
 	test.Equals(t, context.Canceled, err, "unexpected error")
 
-	// reset context and check that the cirucit breaker does not return an error
+	// reset context and check that the circuit breaker does not return an error
 	cctx, cancel = context.WithCancel(context.Background())
 	defer cancel()
 	err = retryBackend.Load(cctx, backend.Handle{Name: "other"}, 0, 0, nilRd)

internal/restorer/filerestorer.go

@@ -359,7 +359,7 @@ func (r *fileRestorer) downloadBlobs(ctx context.Context, packID restic.ID,
 			}
 			for file, offsets := range blob.files {
 				for _, offset := range offsets {
-					// avoid long cancelation delays for frequently used blobs
+					// avoid long cancellation delays for frequently used blobs
 					if ctx.Err() != nil {
 						return ctx.Err()
 					}