Use bitcoin log system when IPC connection fail

This commit aligns the logs with the config logs and uses the internal
bitcoin system. This give better logs, specificly timestamped logs.

Author: jbesraa

src/sv2-tp.cpp

@@ -172,9 +172,9 @@ MAIN_FUNCTION
             node_init = mine_init->ipc()->connectAddress(address);
             break;  // Success: break out of the loop
         } catch (const std::exception& exception) {
-            tfm::format(std::cerr, "IPC connection failed: %s\n", exception.what());
-            tfm::format(std::cerr, "bitcoin-node might not be running or listening on a UNIX socket.\n");
-            tfm::format(std::cerr, "Retrying in 10 seconds...\n\n");
+            LogPrintf("IPC connection failed: %s\n", exception.what());
+            LogPrintf("bitcoin-node might not be running or listening on a UNIX socket.\n");
+            LogPrintf("Retrying in 10 seconds...\n");
 
             std::this_thread::sleep_for(std::chrono::seconds(10));
         }