Fix OS signal names
Fix OS signal names

Ryezhang/scrapy,ArturGaspar/scrapy,scrapy/scrapy,Ryezhang/scrapy,pablohoffman/scrapy,Ryezhang/scrapy,pawelmhm/scrapy,pablohoffman/scrapy,ssteo/scrapy,wujuguang/scrapy,finfish/scrapy,finfish/scrapy,kmike/scrapy,dangra/scrapy,elacuesta/scrapy,kmike/scrapy,dangra/scrapy,eLRuLL/scrapy,ssteo/scrapy,starrify/scrapy,dangra/scrapy,wujuguang/scrapy,ssteo/scrapy,wujuguang/scrapy,pawelmhm/scrapy,elacuesta/scrapy,finfish/scrapy,starrify/scrapy,elacuesta/scrapy,pawelmhm/scrapy,eLRuLL/scrapy,kmike/scrapy,pablohoffman/scrapy,starrify/scrapy,ArturGaspar/scrapy,eLRuLL/scrapy,scrapy/scrapy,ArturGaspar/scrapy,scrapy/scrapy