Adjust deparse line reference in tests to account for changes

Author: lfittl

spec/lib/pg_query/deparse_bad_tree_spec.rb

@@ -25,7 +25,7 @@
 
         expect { PgQuery.deparse(tree) }.to raise_error do |error|
           expect(error).to be_a(described_class::ParseError)
-          expect(error.message).to eq "deparse: error in deparseTargetList: ResTarget without val (postgres_deparse.c:1582)"
+          expect(error.message).to eq "deparse: error in deparseTargetList: ResTarget without val (postgres_deparse.c:1596)"
         end
       end
     end