Werk #7750: ups_generic.include: Fixed scan function for Riello UPS devices

Component	Checks & agents
Title	ups_generic.include: Fixed scan function for Riello UPS devices
Date	Jun 3, 2019
Level	Trivial Change
Class	Bug Fix
Compatibility	Compatible - no manual interaction needed
Checkmk versions & editions	1.6.0b1 Checkmk Community, Checkmk Pro, Checkmk Ultimate MT 1.5.0p17 Checkmk Community, Checkmk Pro, Checkmk Ultimate MT

UPS services were not discovered any more for Riello UPS devices. This has been fixed.

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