repart: tweak byte value output

So far, when outputing information about copy progress we'd suppress the
digit after the dot if it is zero. That makes the progress bar a bit
"jumpy", because sometimes there are two more character cells used than
other times. Let's just always output one digit after the dot here
hence, to avoid this.

src/basic/format-util.c

@@ -39,7 +39,8 @@ char* format_bytes_full(char *buf, size_t l, uint64_t t, FormatBytesFlag flag) {
                                 (t / table[i + 1].factor * 10 / table[n - 1].factor) % 10 :
                                 (t * 10 / table[i].factor) % 10;
 
-                        if (FLAGS_SET(flag, FORMAT_BYTES_BELOW_POINT) && remainder > 0)
+                        if (FLAGS_SET(flag, FORMAT_BYTES_ALWAYS_POINT) ||
+                            (FLAGS_SET(flag, FORMAT_BYTES_BELOW_POINT) && remainder > 0))
                                 (void) snprintf(buf, l,
                                                 "%" PRIu64 ".%" PRIu64 "%s",
                                                 t / table[i].factor,