replaces four spaces by tabs, where appropriate

src/dumm/iface.c

@@ -241,11 +241,11 @@ static char* create_tap(private_iface_t *this)
 	if (ioctl(tap, TUNSETIFF, &ifr) < 0 ||
 		ioctl(tap, TUNSETPERSIST, 1) < 0 ||
 		ioctl(tap, TUNSETOWNER, 0))
-    {
+	{
 		DBG1("creating new tap device failed: %m");
 		close(tap);
 		return NULL;
-    }
+	}
 	close(tap);
 	return strdup(ifr.ifr_name);
 }

src/dumm/main.c

@@ -173,7 +173,7 @@ static void quit()
 		}
 	}
 	enumerator->destroy(enumerator);
-    gtk_main_quit();
+	gtk_main_quit();
 }
 
 static void error_dialog(char *msg)
@@ -492,7 +492,7 @@ int main(int argc, char *argv[])
 	notebook = gtk_notebook_new();
 	g_object_set(G_OBJECT(notebook), "homogeneous", TRUE, NULL);
 	gtk_notebook_set_tab_pos(GTK_NOTEBOOK(notebook), GTK_POS_BOTTOM);
-    gtk_container_add(GTK_CONTAINER(vbox), notebook);
+	gtk_container_add(GTK_CONTAINER(vbox), notebook);
 
 	/* Dumm menu */
 	menu = gtk_menu_new();

src/dumm/mconsole.c

@@ -73,16 +73,16 @@ struct mconsole_reply {
 typedef struct mconsole_notify mconsole_notify;
 /** mconsole notify message */
 struct mconsole_notify {
-    u_int32_t magic;
-    u_int32_t version;
-    enum {
+	u_int32_t magic;
+	u_int32_t version;
+	enum {
 		MCONSOLE_SOCKET,
 		MCONSOLE_PANIC,
 		MCONSOLE_HANG,
 		MCONSOLE_USER_NOTIFY,
-    } type;
-    u_int32_t len;
-    char data[MCONSOLE_MAX_DATA];
+	} type;
+	u_int32_t len;
+	char data[MCONSOLE_MAX_DATA];
 };
 
 /**