Fix formatting problem in sha1sum

fs/hash.go

@@ -32,6 +32,12 @@ const (
 // HashStream and MultiHasher.
 var SupportedHashes = NewHashSet(HashMD5, HashSHA1)
 
+// HashWidth returns the width in characters for any HashType
+var HashWidth = map[HashType]int{
+	HashMD5:  32,
+	HashSHA1: 40,
+}
+
 // HashStream will calculate hashes of all supported hash types.
 func HashStream(r io.Reader) (map[HashType]string, error) {
 	return HashStreamTypes(r, SupportedHashes)

fs/operations.go

@@ -738,7 +738,7 @@ func hashLister(ht HashType, f Fs, w io.Writer) error {
 			Debug(o, "Failed to read %v: %v", ht, err)
 			sum = "ERROR"
 		}
-		syncFprintf(w, "%32s  %s\n", sum, o.Remote())
+		syncFprintf(w, "%*s  %s\n", HashWidth[ht], sum, o.Remote())
 	})
 }