Fix really minor whitespace niggle

library/postgres

@@ -19,4 +19,3 @@ latest: git://github.com/docker-library/postgres@d1644850949964935c418a73e0a7dc3
 
 9.5-rc1: git://github.com/docker-library/postgres@d1644850949964935c418a73e0a7dc36f4f12dd9 9.5
 9.5: git://github.com/docker-library/postgres@d1644850949964935c418a73e0a7dc36f4f12dd9 9.5
-