Changing method call according to coding conventions
fix to remove warning on postgres adapter test.

Warning was: "/vagrant/rails/activerecord/test/cases/adapters/postgresql/uuid_test.rb:63:
warning: ambiguous first argument; put parentheses or even spaces"
Merge pull request #10464 from arkiver/master

Fix to remove warning in postgres adapter test
Merge pull request #10465 from raphweiner/rake_install_depend_on_build

Make rake install task depend on build instead of gem