script: remove out-of-date snprintf TODO

that was resolved in PR27036 "test: Remove last uses of snprintf and simplify"
and while here, fix up 2 words in docs to make the spelling linter green again.

src/blockencodings.h

@@ -135,7 +135,7 @@ protected:
 public:
     CBlockHeader header;
 
-    // Can be overriden for testing
+    // Can be overridden for testing
     using CheckBlockFn = std::function<bool(const CBlock&, BlockValidationState&, const Consensus::Params&, bool, bool)>;
     CheckBlockFn m_check_block_mock{nullptr};
 

src/net.cpp

@@ -1671,7 +1671,7 @@ void CConnman::ThreadOpenConnections(const std::vector<std::string> connect)
                 // Therefore, we do not add them to addrman in the first place.
                 // In case previously unreachable networks become reachable
                 // (e.g. in case of -onlynet changes by the user), fixed seeds will
-                // be loaded only for networks for which we have no addressses.
+                // be loaded only for networks for which we have no addresses.
                 seed_addrs.erase(std::remove_if(seed_addrs.begin(), seed_addrs.end(),
                                                 [&fixed_seed_networks](const CAddress& addr) { return fixed_seed_networks.count(addr.GetNetwork()) == 0; }),
                                  seed_addrs.end());

test/lint/lint-locale-dependence.py

@@ -34,8 +34,6 @@
 #
 # See https://doc.qt.io/qt-5/qcoreapplication.html#locale-settings and
 # https://stackoverflow.com/a/34878283 for more details.
-#
-# TODO: Reduce KNOWN_VIOLATIONS by replacing uses of locale dependent snprintf with strprintf.
 
 import re
 import sys