Werk #3236: Fixed host page of pnp4nagios

Component	User interface
Title	Fixed host page of pnp4nagios
Date	Mar 17, 2016
Level	Trivial Change
Class	Bug Fix
Compatibility	Compatible - no manual interaction needed
Checkmk versions & editions	1.4.0i1 Checkmk Community, Checkmk Pro, Checkmk Ultimate MT 1.2.8b7 Checkmk Community, Checkmk Pro, Checkmk Ultimate MT

Fixed PHP error when opening host page of pnp4nagios, the error was:

"cannot redeclare replace_cmk_expression()..."

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