fix mistypes, spaces and tabs

Change-Id: I651473f638365bbd333c4c80d223cdd023dd2c51
diff --git a/openbsc/src/libmsc/mncc_builtin.c b/openbsc/src/libmsc/mncc_builtin.c
index ee98d2d..9b25ede 100644
--- a/openbsc/src/libmsc/mncc_builtin.c
+++ b/openbsc/src/libmsc/mncc_builtin.c
@@ -1,5 +1,5 @@
 /* mncc_builtin.c - default, minimal built-in MNCC Application for
- *		    standalone bsc_hack (netowrk-in-the-box mode) */
+ *		    standalone bsc_hack (network-in-the-box mode) */
 
 /* (C) 2008-2010 by Harald Welte <laforge@gnumonks.org>
  * (C) 2009 by Andreas Eversberg <Andreas.Eversberg@versatel.de>