copyright: fix typo: sysmocom s/s.m.f.c./s.f.m.c./ GmbH

Change-Id: I81687235fedcbbb686db7def59318e891e00ced7
diff --git a/src/libmsc/msub.c b/src/libmsc/msub.c
index e4dd332..ac93665 100644
--- a/src/libmsc/msub.c
+++ b/src/libmsc/msub.c
@@ -1,6 +1,6 @@
 /* Manage all MSC roles of a connected subscriber (MSC-A, MSC-I, MSC-T) */
 /*
- * (C) 2019 by sysmocom - s.m.f.c. GmbH <info@sysmocom.de>
+ * (C) 2019 by sysmocom - s.f.m.c. GmbH <info@sysmocom.de>
  * All Rights Reserved
  *
  * SPDX-License-Identifier: AGPL-3.0+