vty: show mscs: tweak output

Make the output more readable and split it over two lines, in
preparation to add more information in the next patch.

Before:

  OsmoBSC> show mscs
  0 m3ua RI=SSN_PC,PC=0.23.3,SSN=BSSAP RI=SSN_PC,PC=0.23.1,SSN=BSSAP

After:

  OsmoBSC> show mscs
  MSC 0: RI=SSN_PC,PC=0.23.3,SSN=BSSAP <-> RI=SSN_PC,PC=0.23.1,SSN=BSSAP
         ASP protocol: m3ua

Related: OS#6741
Change-Id: I70ad1b0f44f2a923248f4e3259747cb3fec98fd2
---
M src/osmo-bsc/bsc_vty.c
1 file changed, 28 insertions(+), 2 deletions(-)

diff --git a/src/osmo-bsc/bsc_vty.c b/src/osmo-bsc/bsc_vty.c
index 925f21f..27ceae4 100644
--- a/src/osmo-bsc/bsc_vty.c
+++ b/src/osmo-bsc/bsc_vty.c
@@ -3250,13 +3250,15 @@
 {
 	struct bsc_msc_data *msc;
 	llist_for_each_entry(msc, &bsc_gsmnet->mscs, entry) {
-		vty_out(vty, "%d %s %s ",
+		vty_out(vty, "MSC %d: %s <-> ",
 			msc->a.cs7_instance,
-			osmo_ss7_asp_protocol_name(msc->a.asp_proto),
 			osmo_sccp_inst_addr_name(msc->a.sccp, &msc->a.bsc_addr));
 		vty_out(vty, "%s%s",
 			osmo_sccp_inst_addr_name(msc->a.sccp, &msc->a.msc_addr),
 			VTY_NEWLINE);
+		vty_out(vty, "       ASP protocol: %s%s",
+			osmo_ss7_asp_protocol_name(msc->a.asp_proto),
+			VTY_NEWLINE);
 	}
 
 	return CMD_SUCCESS;

