scripts: Adopted rbydaddr/tagrepr changes across scripts

Just some minor tweaks:

- rbydaddr: Return list instead of tuple, note we rely on the type
  distinction in Rbyd.fetch now.

- tagrepr: Rename w -> weight.

scripts/dbgblock.py

@@ -32,10 +32,10 @@ def bdgeom(s):
         return int(s, b)
 
 # parse some rbyd addr encodings
-# 0xa       -> (0xa,)
-# 0xa.c     -> ((0xa, 0xc),)
-# 0x{a,b}   -> (0xa, 0xb)
-# 0x{a,b}.c -> ((0xa, 0xc), (0xb, 0xc))
+# 0xa       -> [0xa]
+# 0xa.c     -> [(0xa, 0xc)]
+# 0x{a,b}   -> [0xa, 0xb]
+# 0x{a,b}.c -> [(0xa, 0xc), (0xb, 0xc)]
 def rbydaddr(s):
     s = s.strip()
     b = 10
@@ -66,7 +66,7 @@ def rbydaddr(s):
         else:
             addr.append(int(s, b))
 
-    return tuple(addr)
+    return addr
 
 def xxd(data, width=16):
     for i in range(0, len(data), width):