OPAL case sensitive filtering with tilde

OPAL filters are case-insensitive by default. Case sensitive filtering is used with the filter ~ operator.

filter tilde ~ operator

Use the ~ operator for case insensitive match to a string, regardless of quotes. log: 2024-04-06T12:49:00Z,eventName=GetPolicy

filter eventName~"GetPolicy"  //matches
filter eventName~"getpolicy"  //matches
filter eventName~GetPolicy    //matches
filter eventName~getpolicy    //matches