Coverity: Cleanup minor memory leak issue

src/bin/initdb/initdb.c

@@ -2348,6 +2348,7 @@ setup_cdb_schema(FILE *cmdfd)
 		}
 
 		free(lines);
+		free(path);
 	}
 }
 

src/bin/pg_basebackup/streamutil.c

@@ -392,6 +392,7 @@ CreateReplicationSlot(PGconn *conn, const char *slot_name, const char *plugin,
 
 	if (replication_slot_already_exists_error(res))
 	{
+		destroyPQExpBuffer(query);
 		PQclear(res);
 		return true;
 	}

src/bin/pg_dump/pg_dump.c

@@ -12643,6 +12643,7 @@ dumpTransform(Archive *fout, TransformInfo *transform)
 	destroyPQExpBuffer(defqry);
 	destroyPQExpBuffer(delqry);
 	destroyPQExpBuffer(labelq);
+	destroyPQExpBuffer(transformargs);
 }
 
 
@@ -14135,6 +14136,7 @@ dumpAgg(Archive *fout, AggInfo *agginfo)
 		if (aggfullsig)
 			free(aggfullsig);
 
+		free(query);
 		free(aggsig);
 
 		return;
@@ -16093,6 +16095,7 @@ dumpExternal(Archive *fout, TableInfo *tbinfo, PQExpBuffer q, PQExpBuffer delq)
 
 
 		destroyPQExpBuffer(query);
+		free(qualrelname);
 }
 
 /*