app: prevent log goroutines from waking up without any log msgs
app: prevent log goroutines from waking up without any log msgs

cezarsa/tsuru,guilhermebr/tsuru,Endika/tsuru,ggarnier/tsuru,gwmoura/tsuru,tsuru/tsuru,ArxdSilva/tsuru,cezarsa/tsuru,gwmoura/tsuru,tsuru/tsuru,tsuru/tsuru,gwmoura/tsuru,guilhermebr/tsuru,tsuru/tsuru,Endika/tsuru,ggarnier/tsuru,cezarsa/tsuru,ggarnier/tsuru,cezarsa/tsuru,ArxdSilva/tsuru,ArxdSilva/tsuru,ggarnier/tsuru,Endika/tsuru,guilhermebr/tsuru,guilhermebr/tsuru,ArxdSilva/tsuru