Update from 2.4.16 to 2.4.17.

<ChangeLog>

• INFO command now contains the run_id field for Redis Sentinel compatibility.
• Support for the "slave priority" parameter published via INFO and used by Redis Sentinel.
• [BUGFIX] An optimization to convert double values into strings was not used because of an error in a preprocessor directive. Now it's fixed. Saving datasets with many sorted sets should be faster.
• [BUGFIX] Fixed a theoretic bug in the ziplist implementation.

</ChangeLog>