Many style updates around asserts, aborts, and errors

src/connection.cpp

@@ -31,12 +31,12 @@ Connection::~Connection() {
   int e = close(fd_);
   if (e == -1) {
     perror("close");
-    abort();
+    std::abort();
   }
 }
 
-void Connection::appendMessage(std::string_view s, bool copyToArena) {
-  if (copyToArena) {
+void Connection::appendMessage(std::string_view s, bool copy_to_arena) {
+  if (copy_to_arena) {
     char *arena_str = arena_.allocate<char>(s.size());
     std::memcpy(arena_str, s.data(), s.size());
     messages_.emplace_back(arena_str, s.size());