Fix typos

internal/restorer/restorer_windows.go

@@ -8,6 +8,6 @@ import "strings"
 // toComparableFilename returns a filename suitable for equality checks. On Windows, it returns the
 // uppercase version of the string. On all other systems, it returns the unmodified filename.
 func toComparableFilename(path string) string {
-	// apparently NTFS internally uppercases filenames for comparision
+	// apparently NTFS internally uppercases filenames for comparison
 	return strings.ToUpper(path)
 }