Log messages in kvs.cpp have doubled spaces

[atarekra]

Description

LogStream already puts a space between streamed items, but the KVS logging also
writes spaces into the string literals, so most messages come out double spaced.
Where a value was wrapped in quotes, the spaces land inside them.

Actual output from a unit-test run:

error: file  ./data_folder/kvs_123_0.json  could not be read
max snapshot count:  3
Failed to open file ' ./data_folder/kvs_123_0.hash '

Fix is to drop the spaces from the literals. A few lines have quotes or brackets
sitting flush against a value, which can't be kept as-is since the separator
always goes in between.

Same thing arkjedrz raised reviewing #308, which fixed the two lines it touched.

Analysis results

No response

Solution

No response

Error Occurrence Rate

None

How to reproduce

No response

Supporting Information

No response

Classification

Minor

First Affected Release

not released (main)

Last Affected Release

not released (main)

Expected Fixed Release

before release (main)

Category

• Safety Relevant
• Security Relevant