scripted-diff: Rename Sock::{RECV,SEND,ERR}

The `ERR` macro is defined on illumos-based systems in the `regset.h`
header included by the Boost.Test framework, which causes a compilation
error.

-BEGIN VERIFY SCRIPT-

ren1() { sed -i "s/\<$1\>/$2/g" $( git grep -l "$1" ./src/util/sock.* ./src/httpserver.h ) ; }
ren1 RECV RecvEvent
ren1 SEND SendEvent
ren1 ERR  ErrorEvent

ren2() { sed -i "s/\<$1\>/$2/g" $( git grep -l "$1" ./src/ ) ; }
ren2 Sock::RECV Sock::RecvEvent
ren2 Sock::SEND Sock::SendEvent
ren2 Sock::ERR  Sock::ErrorEvent

-END VERIFY SCRIPT-

src/netbase.cpp

@@ -333,7 +333,7 @@ static IntrRecvError InterruptibleRecv(uint8_t* data, size_t len, std::chrono::m
                 // we're approaching the end of the specified total timeout
                 const auto remaining = std::chrono::milliseconds{endTime - curTime};
                 const auto timeout = std::min(remaining, std::chrono::milliseconds{MAX_WAIT_FOR_IO});
-                if (!sock.Wait(timeout, Sock::RECV)) {
+                if (!sock.Wait(timeout, Sock::RecvEvent)) {
                     return IntrRecvError::NetworkError;
                 }
             } else {
@@ -603,7 +603,7 @@ static bool ConnectToSocket(const Sock& sock,
             // Connection didn't actually fail, but is being established
             // asynchronously. Thus, use async I/O api (select/poll)
             // synchronously to check for successful connection with a timeout.
-            const Sock::Event requested = Sock::RECV | Sock::SEND;
+            const Sock::Event requested = Sock::RecvEvent | Sock::SendEvent;
             Sock::Event occurred;
             if (!sock.Wait(timeout, requested, &occurred)) {
                 LogInfo("wait for connect to %s failed: %s\n",