net/: Fix alignment and spacing problems found by tools/nxstyle.

net/netdev/netdev_findbyindex.c

@@ -106,7 +106,7 @@ FAR struct net_driver_s *netdev_findbyindex(int ifindex)
        * registered.
        */
 
-     if (dev->d_ifindex == ifindex)
+      if (dev->d_ifindex == ifindex)
 #else
       /* NOTE that this option is not a safe way to enumerate network
        * devices:  There could be changes to the list of registered device
@@ -165,7 +165,7 @@ int netdev_nextindex(int ifindex)
 
               net_unlock();
               return ifindex + 1;
-           }
+            }
         }
 
       net_unlock();

net/netdev/netdev_ifconf.c

@@ -144,9 +144,9 @@ static int ifconf_ipv4_callback(FAR struct net_driver_s *dev, FAR void *arg)
           net_ipv4addr_copy(inaddr->sin_addr.s_addr, dev->d_ipaddr);
         }
 
-       /* Increment the size of the buffer in any event */
+      /* Increment the size of the buffer in any event */
 
-       ifc->ifc_len += sizeof(struct ifreq);
+      ifc->ifc_len += sizeof(struct ifreq);
     }
 
   return 0;
@@ -221,9 +221,9 @@ static int ifconf_ipv6_callback(FAR struct net_driver_s *dev, FAR void *arg)
           net_ipv6addr_copy(inaddr->sin6_addr.s6_addr16, dev->d_ipv6addr);
         }
 
-       /* Increment the size of the buffer in any event */
+      /* Increment the size of the buffer in any event */
 
-       lifc->lifc_len += sizeof(struct lifreq);
+      lifc->lifc_len += sizeof(struct lifreq);
     }
 
   return 0;

net/netdev/netdev_unregister.c

@@ -153,9 +153,9 @@ int netdev_unregister(FAR struct net_driver_s *dev)
             }
           else
             {
-               /* The entry was at the beginning of the list */
+              /* The entry was at the beginning of the list */
 
-               g_netdevices = curr->flink;
+              g_netdevices = curr->flink;
             }
 
           curr->flink = NULL;