Fix comment in xlogreader.c

This has been introduced by 709d003, that has moved readSegNo, readOff
and readPageTLI into a new structure called WALOpenSegment initialized
separately.

Author: Kyotaro Horiguchi
Discussion: https://postgr.es/m/20190926.110809.248342687.horikyota.ntt@gmail.com

diff --git a/src/backend/access/transam/xlogreader.c b/src/backend/access/transam/xlogreader.c
index 27c27303d6cc5df230197fc71fba366a1371d396..c8b0d2303d3242d4116da8e94ce46211061e6828 100644 (file)
--- a/src/backend/access/transam/xlogreader.c
+++ b/src/backend/access/transam/xlogreader.c
@@ -103,8 +103,7 @@ XLogReaderAllocate(int wal_segment_size, const char *waldir,
    state->read_page = pagereadfunc;
    /* system_identifier initialized to zeroes above */
    state->private_data = private_data;
-   /* ReadRecPtr and EndRecPtr initialized to zeroes above */
-   /* readSegNo, readOff, readLen, readPageTLI initialized to zeroes above */
+   /* ReadRecPtr, EndRecPtr and readLen initialized to zeroes above */
    state->errormsg_buf = palloc_extended(MAX_ERRORMSG_LEN + 1,
                                          MCXT_ALLOC_NO_OOM);
    if (!state->errormsg_buf)