[master] minor grammar improvements

src/lib/asiodns/asiodns_messages.mes

@@ -26,13 +26,13 @@ enabled.
 % ASIODNS_OPEN_SOCKET error %1 opening %2 socket to %3(%4)
 The asynchronous I/O code encountered an error when trying to open a socket
 of the specified protocol in order to send a message to the target address.
-The number of the system error that cause the problem is given in the
+The number of the system error that caused the problem is given in the
 message.
 
 % ASIODNS_READ_DATA error %1 reading %2 data from %3(%4)
 The asynchronous I/O code encountered an error when trying to read data from
 the specified address on the given protocol.  The number of the system
-error that cause the problem is given in the message.
+error that caused the problem is given in the message.
 
 % ASIODNS_READ_TIMEOUT receive timeout while waiting for data from %1(%2)
 An upstream fetch from the specified address timed out.  This may happen for
@@ -41,9 +41,9 @@ or a problem on the network.  The message will only appear if debug is
 enabled.
 
 % ASIODNS_SEND_DATA error %1 sending data using %2 to %3(%4)
-The asynchronous I/O code encountered an error when trying send data to
-the specified address on the given protocol.  The the number of the system
-error that cause the problem is given in the message.
+The asynchronous I/O code encountered an error when trying to send data to
+the specified address on the given protocol.  The number of the system
+error that caused the problem is given in the message.
 
 % ASIODNS_UNKNOWN_ORIGIN unknown origin for ASIO error code %1 (protocol: %2, address %3)
 An internal consistency check on the origin of a message from the