Fixing exit code of tools/log.sh
Fixing exit code of tools/log.sh

yichoi/jerryscript,grgustaf/jerryscript,bzsolt/jerryscript,slaff/jerryscript,jack60504/jerryscript,bsdelf/jerryscript,jack60504/jerryscript,LaszloLango/jerryscript,LaszloLango/jerryscript,loki04/jerryscript,martijnthe/jerryscript,LeeHayun/jerryscript,jerryscript-project/jerryscript,bzsolt/jerryscript,glistening/jerryscript,yichoi/jerryscript,akosthekiss/jerryscript,yichoi/jerryscript,LeeHayun/jerryscript,akosthekiss/jerryscript,gabrielschulhof/jerryscript,martijnthe/jerryscript,loki04/jerryscript,glistening/jerryscript,grgustaf/jerryscript,martijnthe/jerryscript,jerryscript-project/jerryscript,glistening/jerryscript,LaszloLango/jerryscript,akosthekiss/jerryscript,slaff/jerryscript,glistening/jerryscript,LeeHayun/jerryscript,bzsolt/jerryscript,robertsipka/jerryscript,tilmannOSG/jerryscript,martijnthe/jerryscript,jack60504/jerryscript,akosthekiss/jerryscript,slaff/jerryscript,bsdelf/jerryscript,LeeHayun/jerryscript,tilmannOSG/jerryscript,gabrielschulhof/jerryscript,akosthekiss/jerryscript,martijnthe/jerryscript,dbatyai/jerryscript,loki04/jerryscript,zherczeg/jerryscript,LeeHayun/jerryscript,jack60504/jerryscript,martijnthe/jerryscript,zherczeg/jerryscript,grgustaf/jerryscript,robertsipka/jerryscript,bzsolt/jerryscript,dbatyai/jerryscript,robertsipka/jerryscript,tilmannOSG/jerryscript,jerryscript-project/jerryscript,jack60504/jerryscript,loki04/jerryscript,robertsipka/jerryscript,slaff/jerryscript,zherczeg/jerryscript,bzsolt/jerryscript,grgustaf/jerryscript,grgustaf/jerryscript,yichoi/jerryscript,glistening/jerryscript,dbatyai/jerryscript,dbatyai/jerryscript,grgustaf/jerryscript,yichoi/jerryscript,zherczeg/jerryscript,LaszloLango/jerryscript,gabrielschulhof/jerryscript,loki04/jerryscript,glistening/jerryscript,robertsipka/jerryscript,robertsipka/jerryscript,bsdelf/jerryscript,jack60504/jerryscript,bsdelf/jerryscript,tilmannOSG/jerryscript,gabrielschulhof/jerryscript,slaff/jerryscript,loki04/jerryscript,zherczeg/jerryscript,bsdelf/jerryscript,tilmannOSG/jerryscript,jerryscript-project/jerryscript,gabrielschulhof/jerryscript,jerryscript-project/jerryscript,dbatyai/jerryscript,bsdelf/jerryscript,LaszloLango/jerryscript