TA Meraki: how do I fix the bug I found in my splunkd.log?

In the props.conf of the TA on line 65 is the following: EVAL-lease_scope = if(len(lease_scope_subnet)=>1,src."/".lease_scope_subnet,null()) Looking through my splunkd.log, I see the below error. Sadly my regex-fu isn't that good; what is wrong, and how would I fix it? WARN CalcFieldProcessor - Invalid eval expression for 'EVAL-lease_scope' in stanza [meraki]: The expression is malformed. An unexpected character is reached at '>1,src."/".lease_scope_subnet,null())