PVS-Studio warning V614 for glibc

static int send_vc(....)
{
  ....
  int truncating, connreset, resplen, n;
  ....
  #ifdef _STRING_ARCH_unaligned
    *anssizp2 = orig_anssizp - resplen;
    *ansp2 = *ansp + resplen;
  #else
  ....
}

This suspicious code was found in glibc project by PVS-Studio static code analyzer.
Warning message is:
V614 Uninitialized variable 'resplen' used. res_send.c 790

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