various comment / whitespace tweaks (libmsc, gprs, libcommon-cs)

cosmetic ws in common_cs_vty.c, osmo_msc.c

comment: tiny typo fix in gsm_04_08.c

In comments, drop some unbalanced braces, because simplistic C file harvesters
will break at a single opening brace even if it is in a comment. This is aimed
at the fsm-to-dot.py script in libosmocore/contrib.

Change-Id: I3c1fa53195a1e57d6fe0a6791c346d30ceff1251
diff --git a/openbsc/src/libcommon-cs/common_cs_vty.c b/openbsc/src/libcommon-cs/common_cs_vty.c
index 7f8b495..08a7581 100644
--- a/openbsc/src/libcommon-cs/common_cs_vty.c
+++ b/openbsc/src/libcommon-cs/common_cs_vty.c
@@ -163,7 +163,7 @@
 {
 	struct gsm_network *gsmnet = gsmnet_from_vty(vty);
 
-	gsmnet->a5_encryption= atoi(argv[0]);
+	gsmnet->a5_encryption = atoi(argv[0]);
 
 	return CMD_SUCCESS;
 }