Remove dash from name used in VTY cmd prompt

Others projects don't contain a dash in there, and it seems to cause
problems with TTCN3 VTY expectations.

Change-Id: I3430abb5fc622dec293457466e760de95fa3a05c
diff --git a/osmoappdesc.py b/osmoappdesc.py
index b3938f5..3bd418e 100644
--- a/osmoappdesc.py
+++ b/osmoappdesc.py
@@ -18,7 +18,7 @@
     "osmo-pcu": ["doc/examples/osmo-pcu.cfg"]
 }
 
-apps = [(4240, "src/osmo-pcu", "Osmo-PCU", "osmo-pcu"),
+apps = [(4240, "src/osmo-pcu", "OsmoPCU", "osmo-pcu"),
         ]
 
 vty_command = ["src/osmo-pcu", "-c", "doc/examples/osmo-pcu.cfg"]