Silence compiler warning induced by commit de4389712.
authorTom Lane <tgl@sss.pgh.pa.us>
Wed, 26 Apr 2017 18:01:26 +0000 (14:01 -0400)
committerTom Lane <tgl@sss.pgh.pa.us>
Wed, 26 Apr 2017 18:01:26 +0000 (14:01 -0400)
commit49da00677dc25d83be44372918e21a405863ace2
treeb33fa39bf934235ff77c253ba2827c735db65f17
parente315346d839ef27f9d5f2584f44de09f08573df2
Silence compiler warning induced by commit de4389712.

Smarter compilers can see that "slot" can't be used uninitialized,
but some popular ones cannot.  Noted by Jeff Janes.
src/backend/replication/logical/launcher.c