pgsql: pg_basebackup: Correct type of WalSegSz

pg_basebackup: Correct type of WalSegSz

The pg_basebackup code had WalSegSz as uint32, whereas the rest of the
code has it as int.  This seems confusing, and using the extra range
wouldn't actually work.

Reviewed-by: Daniel Gustafsson <daniel@yesql.se>
Discussion: https://www.postgresql.org/message-id/flat/1bf15c7a-0acd-1864-081e-7a28814310fe%40enterprisedb.com

Branch
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master

Details
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https://git.postgresql.org/pg/commitdiff/1980d3585e3c7fce74b811ca8d77733036cae76c

Modified Files
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src/bin/pg_basebackup/streamutil.c | 2 +-
src/bin/pg_basebackup/streamutil.h | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)