style(server): Improve a line-break in server.h
style(server): Improve a line-break in server.h

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