pg_upgrade: add missing period in C comment

diff --git a/src/bin/pg_upgrade/pg_upgrade.c b/src/bin/pg_upgrade/pg_upgrade.c
index 8cdfaf35eff3d1e691a074330bdc1ec94d60ee5f..00cc938b654e17e0a2ab5f72e1cdb76660dfb252 100644 (file)
--- a/src/bin/pg_upgrade/pg_upgrade.c
+++ b/src/bin/pg_upgrade/pg_upgrade.c
@@ -539,8 +539,8 @@ set_frozenxids(bool minmxid_only)
        /*
         * We must update databases where datallowconn = false, e.g.
         * template0, because autovacuum increments their datfrozenxids,
-        * relfrozenxids, and relminmxid  even if autovacuum is turned off,
-        * and even though all the data rows are already frozen  To enable
+        * relfrozenxids, and relminmxid even if autovacuum is turned off,
+        * and even though all the data rows are already frozen.  To enable
         * this, we temporarily change datallowconn.
         */
        if (strcmp(datallowconn, "f") == 0)