cosmetic: vty: Fix trailing whitespace

Change-Id: Ieea7d13161440326d58f80f1fbc9f7e3fa5a40af
diff --git a/src/vty/telnet_interface.c b/src/vty/telnet_interface.c
index 9aa36fe..cd32e68 100644
--- a/src/vty/telnet_interface.c
+++ b/src/vty/telnet_interface.c
@@ -256,7 +256,7 @@
 }
 
 /*! Close all telnet connections and release the telnet socket */
-void telnet_exit(void) 
+void telnet_exit(void)
 {
 	struct telnet_connection *tc, *tc2;