[pgpool-general: 6962] Fix Dead store to local variable

[sherlockcpp]

Hello,


In function send_complete_and_ready(),
I found the value of 'msg_len' is not read since it was assigned 15.


the code is as follows
---------src/utils/pool_process_reporting.c:121---------------------------
 121     if (num_rows >= 0)
 122         msg_len = snprintf(msg, 16, "%s %d", message, num_rows);
 123     else
 124         msg_len = snprintf(msg, 16, "%s", message);
 125
 126     /*
 127      * if we had more than 16 bytes, including '\0', the string was
 128      * truncatured shouldn't happen though, as it would means more than
 129      * "SELECT 99999999"
 130      */
 131     if (msg_len > 15)
 132         msg_len = 15;
 133
 134     /* complete command response */
 135     pool_write(frontend, "C", 1);
 136     if (MAJOR(backend) == PROTO_MAJOR_V3)
 137     {
 138         len = htonl(4 + strlen(msg) + 1);
 139         pool_write(frontend, &len, sizeof(len));
 140     }
 141     pool_write(frontend, msg, strlen(msg) + 1);



I think 'msg_len' can replace 'strlen(msg)' after it , and I make a patch for it.


Best regards,
sherlockcpp
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