Avoid busy waiting in the SynchronousHostResolver.

Use ErrorToShortString when logging net errors to avoid the net:: prefix.

Review URL: https://codereview.chromium.org/1025193002

Cr-Commit-Position: refs/heads/master@{#321726}
diff --git a/net/tools/quic/quic_client_bin.cc b/net/tools/quic/quic_client_bin.cc
index 752ccd8..234f526 100644
--- a/net/tools/quic/quic_client_bin.cc
+++ b/net/tools/quic/quic_client_bin.cc
@@ -180,7 +180,7 @@
     int rv = net::tools::SynchronousHostResolver::Resolve(host, &addresses);
     if (rv != net::OK) {
       LOG(ERROR) << "Unable to resolve '" << host << "' : "
-                 << net::ErrorToString(rv);
+                 << net::ErrorToShortString(rv);
       return 1;
     }
     ip_addr = addresses[0].address();