title: set initdb encoding for postgres
body: <p>When I try to call pg_ctl with init[db] the option for setting the encoding is not recognized:</p>
  
  <pre><code>pg_ctl init -D=D:\testdata -E=UTF8 -U=postgres
  pg_ctl: illegal option -- E
  </code></pre>
  
  <p>Has this changed? I used latest PostgreSQL 9.6 (zip download, x64).
  When I don't use the -E switch everything works but the database cluster is initialized with the wrong encoding.</p>