Improperly formatted log error for certain nbt tags with required values

Bug

Some nbt tags that expect required values have improperly formatted log errors with no spacing or text between the entity type and the error. Unsure of the extents of which tags this issue occurs on.

Example output:

Display entityNot a list: {}
Display entityNo key sky in MapLike[{}]; No key block in MapLike[{}]

To Reproduce

1. Launch with output log

2. /summon block_display ~ ~ ~ {transformation:{},brightness:{}}

3. Output log displays:

   Display entityNot a list: {}
   Display entityNo key sky in MapLike[{}]; No key block in MapLike[{}]