Fixes #3910. Backporting the upstream fix by dropping the f1 check. Ought to uprev the whole thing from the git repo, but need to figure out if we have any local changes first.

git-svn-id: file:///home/svn/framework3/trunk@11894 4d416f70-5f16-0410-b530-b9f4589650da

lib/rbmysql/protocol.rb

@@ -348,7 +348,8 @@ class RbMysql
         rest_scramble_buff = data.unpack("CZ*Va8CvCva13Z13")
         raise ProtocolError, "unsupported version: #{protocol_version}" unless protocol_version == VERSION
         raise ProtocolError, "invalid packet: f0=#{f0}" unless f0 == 0
-        raise ProtocolError, "invalid packet: f1=#{f1.inspect}" unless f1 == "\0\0\0\0\0\0\0\0\0\0\0\0\0"
+        # Remove the f1 check to backport https://github.com/tmtm/ruby-mysql/commit/07ddfafafbd1d46bbb71c7cb54ae0f03bc998d27
+				# raise ProtocolError, "invalid packet: f1=#{f1.inspect}" unless f1 == "\0\0\0\0\0\0\0\0\0\0\0\0\0"
         scramble_buff.concat rest_scramble_buff
         self.new protocol_version, server_version, thread_id, server_capabilities, server_charset, server_status, scramble_buff
       end