Fix comment about cs_main (IsInitialBlockDownload locks cs_main)
Fix comment about cs_main (IsInitialBlockDownload locks cs_main)

NunoEdgarGub1/elements,sipa/elements,fussl/elements,pstratem/elements,droark/elements,fussl/elements,NunoEdgarGub1/elements,jtimon/elements,sipa/elements,fussl/elements,fussl/elements,gwillen/elements,apoelstra/elements,droark/elements,jtimon/elements,sipa/elements,NunoEdgarGub1/elements,truthcoin/blocksize-market,gwillen/elements,jtimon/elements,gwillen/elements,apoelstra/elements,gwillen/elements,apoelstra/elements,sipa/elements,truthcoin/blocksize-market,truthcoin/blocksize-market,truthcoin/blocksize-market,aburan28/elements,NunoEdgarGub1/elements,jtimon/elements,truthcoin/blocksize-market,pstratem/elements,droark/elements,pstratem/elements,droark/elements,aburan28/elements,pstratem/elements,aburan28/elements,jtimon/elements,droark/elements,NunoEdgarGub1/elements,aburan28/elements,apoelstra/elements,gwillen/elements,aburan28/elements,droark/elements,sipa/elements,apoelstra/elements,fussl/elements,jtimon/elements,gwillen/elements,NunoEdgarGub1/elements,sipa/elements,pstratem/elements,pstratem/elements,truthcoin/blocksize-market,fussl/elements,apoelstra/elements,aburan28/elements