Check_MK Werk 5550: mk_oracle.ps1: Fixed exceptions because of useless backslashes

ID: 5550 Title: mk_oracle.ps1: Fixed exceptions because of useless backslashes Component: Checks & agents Level: 1 Class: Bug fix Version: 1.5.0i2 There has been a bug introduced as part of a feature enhancement which caused an exception of the plugin and prevented the execution. This bug has been introduced in June 16th and is solved now.