Fixed two compiler warnings

src/player.cpp

@@ -79,12 +79,12 @@ Player::Player():
 	swimming_up(false),
 	craftresult_is_preview(true),
 	hp(20),
+	privs(PRIV_DEFAULT),
 	peer_id(PEER_ID_INEXISTENT),
 	m_pitch(0),
 	m_yaw(0),
 	m_speed(0,0,0),
-	m_position(0,0,0),
-	privs(PRIV_DEFAULT)
+	m_position(0,0,0)
 {
 	updateName("<not set>");
 	resetInventory();

src/server.cpp

@@ -2231,7 +2231,7 @@ void Server::ProcessData(u8 *data, u32 datasize, u16 peer_id)
 			// Mandatory parameter; actually used for nothing
 			core::map<v3s16, MapBlock*> modified_blocks;
 
-			u8 material;
+			u8 material = CONTENT_IGNORE;
 			u8 mineral = MINERAL_NONE;
 
 			bool cannot_remove_node = false;