Werk #6012: Fixed CMC crash for malformed rrddata queries.

Component	Livestatus
Title	Fixed CMC crash for malformed rrddata queries.
Date	Jun 7, 2018
Level	Trivial Change
Class	Bug Fix
Compatibility	Compatible - no manual interaction needed
Checkmk versions & editions	1.6.0b1 Checkmk Pro, Checkmk Ultimate MT 1.5.0b7 Checkmk Pro, Checkmk Ultimate MT

Malformed Livestatus queries involving the "rrddata" column could cause a CMC crash, this has been fixed.

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