Silence "uname -o", not supported on all platforms
Silence "uname -o", not supported on all platforms

Prevents errors like

  Checking librdkafka integrity
  librdkafka.1.dylib             OK
  librdkafka.a                   OK
  Symbol visibility              OK
  uname: illegal option -- o
  usage: uname [-amnprsv]

bhuvanaurora/librdkafka,wzb56/librdkafka,yazgoo/librdkafka,stromnet/librdkafka,frew/librdkafka,wzb56/librdkafka,bhuvanaurora/librdkafka,okman1214/librdkafka,janmejay/librdkafka,klonikar/librdkafka,lsniks/librdkafka,lsniks/librdkafka,klonikar/librdkafka,bwelling/librdkafka,rileyberton/librdkafka,okman1214/librdkafka,orthrus/librdkafka,lsniks/librdkafka,frew/librdkafka,jszwedko/librdkafka,jszwedko/librdkafka,lsniks/librdkafka,zhangjingpu/librdkafka,stromnet/librdkafka,smanders/librdkafka,okman1214/librdkafka,stromnet/librdkafka,senior7515/librdkafka,orthrus/librdkafka,smanders/librdkafka,zhangjingpu/librdkafka,bwelling/librdkafka,klonikar/librdkafka,rileyberton/librdkafka,bwelling/librdkafka,smanders/librdkafka,tattsun/librdkafka,zhangjingpu/librdkafka,wzb56/librdkafka,wzb56/librdkafka,lsniks/librdkafka,stromnet/librdkafka,smanders/librdkafka,janmejay/librdkafka,okman1214/librdkafka,smanders/librdkafka,orthrus/librdkafka,tempbottle/librdkafka,orthrus/librdkafka,tattsun/librdkafka,rileyberton/librdkafka,tempbottle/librdkafka,tattsun/librdkafka,yazgoo/librdkafka,tattsun/librdkafka,bhuvanaurora/librdkafka,okman1214/librdkafka,stromnet/librdkafka,senior7515/librdkafka,zhangjingpu/librdkafka,jszwedko/librdkafka,senior7515/librdkafka,bhuvanaurora/librdkafka,tempbottle/librdkafka,jszwedko/librdkafka,senior7515/librdkafka,yazgoo/librdkafka,janmejay/librdkafka,yazgoo/librdkafka,janmejay/librdkafka,bwelling/librdkafka,yazgoo/librdkafka,bhuvanaurora/librdkafka,frew/librdkafka,bwelling/librdkafka,frew/librdkafka,tempbottle/librdkafka,rileyberton/librdkafka,tempbottle/librdkafka,frew/librdkafka,jszwedko/librdkafka,zhangjingpu/librdkafka,tattsun/librdkafka,klonikar/librdkafka,wzb56/librdkafka,rileyberton/librdkafka