scripted-diff: LogPrintLevel(*,BCLog::Level::*,*) -> LogError()/LogWarning()

This is a minimal behavior change and changes log output from:

  [net:error] Something bad happened
  [net:warning] Something problematic happened

to either

  [error] Something bad happened
  [warning] Something problematic happened

or, when -loglevelalways=1 is enabled:

  [all:error] Something bad happened
  [all:warning] Something problematic happened

Such a behavior change is desired, because all warning and error logs
are written in the same style in the source code and they are logged in
the same format for log consumers.

-BEGIN VERIFY SCRIPT-

 sed --regexp-extended --in-place \
   's/LogPrintLevel\((BCLog::[^,]*), BCLog::Level::(Error|Warning), */Log\2(/g' \
   $( git grep -l LogPrintLevel ':(exclude)src/test/logging_tests.cpp' )

-END VERIFY SCRIPT-

src/netbase.cpp

@@ -650,7 +650,7 @@ std::unique_ptr<Sock> ConnectDirectly(const CService& dest, bool manual_connecti
 {
     auto sock = CreateSock(dest.GetSAFamily(), SOCK_STREAM, IPPROTO_TCP);
     if (!sock) {
-        LogPrintLevel(BCLog::NET, BCLog::Level::Error, "Cannot create a socket for connecting to %s\n", dest.ToStringAddrPort());
+        LogError("Cannot create a socket for connecting to %s\n", dest.ToStringAddrPort());
         return {};
     }
 
@@ -678,7 +678,7 @@ std::unique_ptr<Sock> Proxy::Connect() const
 #ifdef HAVE_SOCKADDR_UN
     auto sock = CreateSock(AF_UNIX, SOCK_STREAM, 0);
     if (!sock) {
-        LogPrintLevel(BCLog::NET, BCLog::Level::Error, "Cannot create a socket for connecting to %s\n", m_unix_socket_path);
+        LogError("Cannot create a socket for connecting to %s\n", m_unix_socket_path);
         return {};
     }