Change petertodd seeds to petertodd.net

I changed my DNS seeds to .net from .org to avoid issues with DNS blacklisting,
that falsely thinks my domain name is pointing to IP addresses with malware and
similar things. Right now there are CNAME records, so the .org addresses still
work. But eventually, if needed, I'll remove those CNAME's.

src/kernel/chainparams.cpp

@@ -136,7 +136,7 @@ class CMainParams : public CChainParams {
         vSeeds.emplace_back("dnsseed.bitcoin.dashjr.org."); // Luke Dashjr
         vSeeds.emplace_back("seed.bitcoinstats.com."); // Christian Decker, supports x1 - xf
         vSeeds.emplace_back("seed.bitcoin.jonasschnelli.ch."); // Jonas Schnelli, only supports x1, x5, x9, and xd
-        vSeeds.emplace_back("seed.btc.petertodd.org."); // Peter Todd, only supports x1, x5, x9, and xd
+        vSeeds.emplace_back("seed.btc.petertodd.net."); // Peter Todd, only supports x1, x5, x9, and xd
         vSeeds.emplace_back("seed.bitcoin.sprovoost.nl."); // Sjors Provoost
         vSeeds.emplace_back("dnsseed.emzy.de."); // Stephan Oeste
         vSeeds.emplace_back("seed.bitcoin.wiz.biz."); // Jason Maurice
@@ -243,7 +243,7 @@ class CTestNetParams : public CChainParams {
         vSeeds.clear();
         // nodes with support for servicebits filtering should be at the top
         vSeeds.emplace_back("testnet-seed.bitcoin.jonasschnelli.ch.");
-        vSeeds.emplace_back("seed.tbtc.petertodd.org.");
+        vSeeds.emplace_back("seed.tbtc.petertodd.net.");
         vSeeds.emplace_back("seed.testnet.bitcoin.sprovoost.nl.");
         vSeeds.emplace_back("testnet-seed.bluematt.me."); // Just a static list of stable node(s), only supports x9