Needs approval from an approver in each of these files:
- ~~[OWNERS](https://github.com/milvus-io/birdwatcher/blob/v1.0.x/OWNERS)~~ [congqixia]
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For history suggestion mode, suggestion item will be appended after last space, which may cause incorrect input for multi-word commands, say:
show collections
after suggetions becameshow show collections
This PR make suggestion item trim parts before last space.