Re: pg_xlogdump fails to handle WAL file with multi-page XLP_FIRST_IS_CONTRECORD data

+       /*
+        * Compute targetRecOff. It should typically be greater than short
+        * page-header since a valid record can't , but can also be zero when
+        * caller has supplied a page-aligned address or when we are skipping
+        * multi-page continuation record. It doesn't matter though because
+        * ReadPageInternal() will read at least short page-header worth of
+        * data
+        */
This needs some polishing, there is an unfinished sentence here.

+       targetRecOff = tmpRecPtr % XLOG_BLCKSZ;
targetRecOff, pageHeaderSize and targetPagePtr could be declared
inside directly the new while loop.