Fix wrong calculation of array size of discovery urls
Fix wrong calculation of array size of discovery urls

Replace multiplication with addition

StalderT/open62541,JGrothoff/open62541,StalderT/open62541,JGrothoff/open62541,jpfr/open62541,StalderT/open62541,JGrothoff/open62541,open62541/open62541,jpfr/open62541,open62541/open62541,jpfr/open62541,StalderT/open62541,JGrothoff/open62541,open62541/open62541,jpfr/open62541,open62541/open62541