update gun pick description style

vacuum_gambit.p8

@@ -916,7 +916,9 @@ blast_gun = mknew(gun_base.new{
  maxammo = 5,
  munition = blast,
  hdr = "bLASTER",
- body= [[plasma orb
+ body= [[-----------GUN
+
+ plasma orb
 cuts through
   enemies.
     slow.
@@ -988,7 +990,9 @@ protron_gun_p = mknew(protron_gun_e.new{
  maxammo = 20,
  cooldown = 0x0.0018,
  hdr = "pROTRON",
- body = [[spray shots
+ body = [[-----------GUN
+
+ spray shots
  in a dense
     arc.
 
@@ -1049,9 +1053,10 @@ vulcan_gun_p = mknew(vulcan_gun_e.new{
  munition=vulcan_p,
  maxammo = 100,
  hdr = "vULCAN",
- body = [[rapid fire
-in a v
-shape.
+ body = [[-----------GUN
+
+rapid fire in
+ a v shape.
 
 ammo: 100
 rate: 20/sec