Fix some spacing problems

net/socket/net_dupsd.c

@@ -99,7 +99,7 @@ int net_dupsd(int sockfd, int minsd)
 
   psock1 = sockfd_socket(sockfd);
 
- /* Verify that the sockfd corresponds to valid, allocated socket */
+  /* Verify that the sockfd corresponds to valid, allocated socket */
 
   if (!psock1 || psock1->s_crefs <= 0)
     {

net/socket/net_sendfile.c

@@ -744,15 +744,15 @@ ssize_t net_sendfile(int outfd, struct file *infile, off_t *offset,
 
   tcp_callback_free(conn, state.snd_ackcb);
 
- errout_datacb:
+errout_datacb:
   tcp_callback_free(conn, state.snd_datacb);
 
- errout_locked:
+errout_locked:
 
   sem_destroy(&state. snd_sem);
   net_unlock(save);
 
- errout:
+errout:
 
   if (err)
     {

net/socket/recvfrom.c

@@ -265,8 +265,8 @@ static inline void recvfrom_newtcpdata(FAR struct net_driver_s *dev,
    * add it to the read-ahead buffers.
    */
 
- if (recvlen < dev->d_len)
-   {
+  if (recvlen < dev->d_len)
+    {
 #ifdef CONFIG_NET_TCP_READAHEAD
       FAR struct tcp_conn_s *conn = (FAR struct tcp_conn_s *)pstate->rf_sock->s_conn;
       FAR uint8_t *buffer = (FAR uint8_t *)dev->d_appdata + recvlen;

net/socket/socket.c

@@ -185,9 +185,9 @@ static int psock_local_alloc(FAR struct socket *psock)
       return -ENOMEM;
     }
 
- /* Set the reference count on the connection structure.  This reference
-  * count will be incremented only if the socket is dup'ed
-  */
+  /* Set the reference count on the connection structure.  This reference
+   * count will be incremented only if the socket is dup'ed
+   */
 
   DEBUGASSERT(conn->lc_crefs == 0);
   conn->lc_crefs = 1;