cmd/devp2p: add node filter for snap + fix arg error (#21950)

[ucwong]

No description provided.

[codecov]

Codecov Report

Merging #846 (5c06866) into master (ccc56fc) will increase coverage by 0.00%.
The diff coverage is 0.00%.

@@           Coverage Diff           @@
##           master     #846   +/-   ##
=======================================
  Coverage   49.08%   49.09%           
=======================================
  Files         419      419           
  Lines       47797    47801    +4     
=======================================
+ Hits        23463    23467    +4     
- Misses      22278    22283    +5     
+ Partials     2056     2051    -5     

Impacted Files	Coverage Δ
cmd/devp2p/nodesetcmd.go	0.00% <0.00%> (ø)
consensus/cuckoo/sealer.go	0.00% <0.00%> (-5.76%)	⬇️
trie/sync_bloom.go	54.28% <0.00%> (-5.72%)	⬇️
consensus/cuckoo/cuckoo.go	30.86% <0.00%> (-4.94%)	⬇️
rpc/handler.go	89.24% <0.00%> (-1.08%)	⬇️
p2p/peer.go	76.71% <0.00%> (-1.06%)	⬇️
rpc/client.go	81.56% <0.00%> (-0.79%)	⬇️
p2p/simulations/http.go	66.02% <0.00%> (-0.65%)	⬇️
ctxc/downloader/downloader.go	76.47% <0.00%> (+0.21%)	⬆️
core/tx_pool.go	75.50% <0.00%> (+0.93%)	⬆️
... and 4 more