Merge r1469513 from trunk:

 * r1469513
   Give the correct command to unpack SQLite's amalgamation .zip file.
   Justification:
     Good document is good.
   Votes:
     +1: blair, rhuijben, philip


git-svn-id: https://svn.apache.org/repos/asf/subversion/branches/1.8.x@1470103 13f79535-47bb-0310-9956-ffa450edef68