[FS#1283] block info returns additional charactes in FAT32 label name

[LEDE Bugs]

The following task has a new comment added:

FS#1283 - block info returns additional charactes in FAT32 label name
User who did this - fleskalebas (fleskalebas)

----------
After applying the patch, no extra character appends in the LABEL name. 

However, when I name the disk with a label shorter than 11 characters, block info still pads the label name with spaces until the name is 11 characters long. A label with exactly 11 characters will work to avoid spaces.

In the bug report I accidentally stated that the label name must be 12 characters. This is wrong, the max size of a fat32 label is 11 characters. However, the patch still works. 
----------

More information can be found at the following URL:
https://bugs.lede-project.org/index.php?do=details&task_id=1283#comment4286