[Nano-devel] File size problem in the status bar

[Liu Hao]

Dear developers,

I am using nano from Git master @ c46696d40c. I have found two minor 
issues about the file size in bytes field in the status bar. Please check.

1) With auto indent turned on, on a line with two-TAB indention for 
example, when I press Enter, nano inserts a new line with two TAB 
characters in the front, so the file size gets increased by 3. This is 
the correct behavior. However, if I undo this operation using Alt-U, the 
new line is deleted and the file size is only decreased by 1, so the 
size displayed will be larger than the actual size by 2.

Expected behavior: The file size should revert to its old value before 
pressing the Enter key.

2) I intermittently get garbage file size values on the status bar. I 
don't know how to reproduce this. Eventually I had Valgrind attached to 
nano and it caught use of an uninitialized value in winio.c on the 
following line:

```
charpct = (openfile->totsize == 0) ? 0 : 100 * sum / openfile->totsize;
```
, where `openfile->totsize` seemed uninitialized, as `sum` looked 
normal. I have had Valgrind log attached. Hope it helps.

--
Best regards,
LH_Mouse

vg.log
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