Fixed cppcheck errors

src/log.h

@@ -249,6 +249,7 @@ template<> struct Stream::Entry<hash>
 			buf[i * 2 + 0] = "0123456789abcdef"[data.h[i] >> 4];
 			buf[i * 2 + 1] = "0123456789abcdef"[data.h[i] & 15];
 		}
+		// cppcheck-suppress uninitvar
 		wrapper->writeBuf(buf, sizeof(buf));
 	}
 };
@@ -458,6 +459,7 @@ struct log::Stream::Entry<PadRight<T>>
 	static NOINLINE void put(PadRight<T>&& data, Stream* wrapper)
 	{
 		char buf[log::Stream::BUF_SIZE + 1];
+		// cppcheck-suppress uninitvar
 		log::Stream s(buf);
 		s << data.m_value;
 

src/p2pool.cpp

@@ -1393,6 +1393,7 @@ void p2pool::api_update_stats_mod()
 	}
 
 	char last_block_found_buf[log::Stream::BUF_SIZE + 1];
+	// cppcheck-suppress uninitvar
 	log::Stream s(last_block_found_buf);
 	s << last_block_found_hash << '\0';
 	memcpy(last_block_found_buf + 4, "...", 4);

src/side_chain.cpp

@@ -100,6 +100,7 @@ SideChain::SideChain(p2pool* pool, NetworkType type, const char* pool_name)
 	LOGINFO(1, "generating consensus ID");
 
 	char buf[log::Stream::BUF_SIZE + 1];
+	// cppcheck-suppress uninitvar
 	log::Stream s(buf);
 
 	s << s_networkType     << '\0'

src/util.cpp

@@ -213,6 +213,7 @@ NOINLINE bool difficulty_type::check_pow(const hash& pow_hash) const
 std::ostream& operator<<(std::ostream& s, const difficulty_type& d)
 {
 	char buf[log::Stream::BUF_SIZE + 1];
+	// cppcheck-suppress uninitvar
 	log::Stream s1(buf);
 	s1 << d << '\0';
 	s << buf;
@@ -251,6 +252,7 @@ std::istream& operator>>(std::istream& s, difficulty_type& diff)
 std::ostream& operator<<(std::ostream& s, const hash& h)
 {
 	char buf[log::Stream::BUF_SIZE + 1];
+	// cppcheck-suppress uninitvar
 	log::Stream s1(buf);
 	s1 << h << '\0';
 	s << buf;
@@ -401,6 +403,7 @@ struct BackgroundJobTracker::Impl
 		}
 
 		char buf[log::Stream::BUF_SIZE + 1];
+		// cppcheck-suppress uninitvar
 		log::Stream s(buf);
 		for (const auto& job : m_jobs) {
 			s << '\n' << job.first << " (" << job.second << ')';

src/zmq_reader.cpp

@@ -210,6 +210,7 @@ bool ZMQReader::connect(const std::string& address, bool keep_monitor)
 	}
 
 	char buf[64];
+	// cppcheck-suppress uninitvar
 	log::Stream s(buf);
 	s << "inproc://p2pool-connect-mon-" << id << '\0';
 	++id;