Luca Cavanna 8a0e5f7b87
Deprecate support for first line empty in msearch API (#41442)
In order to support empty action metadata in the first msearch item,
we need to remove support for prepending msearch request body with an
empty line, which prevents us from parsing the empty line as action
metadata for the first search item.

Relates to #41011
2019-04-25 12:45:18 +02:00
..
2019-04-24 23:40:03 -07:00
2019-04-24 23:40:03 -07:00
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