It's not necessary to know the amount of memory left down to two decimals of a megabyte, especially since available memory nowadays is expected to be in the gigabyte range which ends up filling the columns with large numbers.
The displayed units are also inconsistent with tlctl, although that is not necessarily wrong.
Columns on the tlwebadm/status/load page whose data formats have been altered are
Bogomips : 2 -> 0 decimals
Load : 3 -> 2 decimals
Mem total : 2 -> 1 decimals & MB -> GB
Mem free : 2 -> 1 decimals & MB -> GB
Swap total : 2 -> 1 decimals & MB -> GB
Swap free : 2 -> 1 decimals & MB -> GB
Rating : 2 -> 1 decimals
Seems to be working as intended.
Commit r39574 made the Rating column number of decimals consistent with tlctl. It was mistakenly referred to bug 7909.
Looks good! There are now a more reasonable number of decimals, and the change to GiB looks correct. Checked the code changes and could not find any issues.