Fixed connect to seeders print + main print

[iulianpascalau]

• fixed connect to seeders print
• added missing log print on node start error

Testing scenario:

1. build the node binary from master branch and run it in a new folder without the config folders. The node will close itself without printing any messages. Repeat the step from this branch: should see a log print error message.

2.a. run node (with configs) from master branch (no seeder, nothing else and log level -log-level *:DEBUG). You should see the log debug print error connecting to seeder (this is correct).
2.b. Now, change in the p2p.toml file, place these seeders:

    InitialPeerList = [
        "/dns4/gondor.mainnet.elrond.com/tcp/10000/p2p/16Uiu2HAmQihd2Di6JrDCRf6bnxXEmgfFy8C3S7WDnq7WNXscfkrG",
        "/dns4/isengard.mainnet.elrond.com/tcp/10000/p2p/16Uiu2HAkxWoEwkkxMfUgi2CkxjWkZ7cccjvh4V57gxUQQC6c45N6",
        "/ip4/188.166.192.50/tcp/10000/p2p/16Uiu2HAmT2rqgzWYnFe7YL4poyjXvKhGtrwkhaAibSDFCjGATDZ7",
        "/ip4/188.166.203.198/tcp/10000/p2p/16Uiu2HAmJeuEEczm6kLyBKAJQobVn7ARmGFQ5mPrbNVsjdhJz9s1",
    ]

you can still see the log print as debug stating error connecting to seeder and mentioning something about an unwanted peer.
2.c. re-run the same scenario with the same steps (run the node with -log-level *:DEBUG,p2p:TRACE) and for scenario 2a. you will see the print as log debug. For repeating 2b., you will see a TRACE message stating tryConnectToSeeder: unwanted peer and no log debug error connecting to seeder.

[codecov]

Codecov Report

Merging #3473 (99a48a8) into master (ac00df9) will decrease coverage by 0.00%.
The diff coverage is 53.84%.

❗ Current head 99a48a8 differs from pull request most recent head 78cd500. Consider uploading reports for the commit 78cd500 to get more accurate results

@@            Coverage Diff             @@
##           master    #3473      +/-   ##
==========================================
- Coverage   73.85%   73.85%   -0.01%     
==========================================
  Files         579      579              
  Lines       73407    73415       +8     
==========================================
+ Hits        54215    54217       +2     
- Misses      14824    14829       +5     
- Partials     4368     4369       +1     

Impacted Files	Coverage Δ
p2p/libp2p/discovery/continuousKadDhtDiscoverer.go	73.10% <50.00%> (-2.81%)	⬇️
p2p/libp2p/discovery/optimizedKadDhtDiscoverer.go	79.03% <100.00%> (ø)
p2p/libp2p/netMessenger.go	75.00% <0.00%> (ø)

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[gabi-vuls]

System test passed.