refactor(server): Small cosmetic improvements in ua_server.c
refactor(server): Small cosmetic improvements in ua_server.c

open62541/open62541,JGrothoff/open62541,JGrothoff/open62541,JGrothoff/open62541,open62541/open62541,open62541/open62541,JGrothoff/open62541,open62541/open62541