Merge #172: Resolve unneeded semi-colon warning on rust 1.51

541e99f Resolve unneeded semi-colon warning on rust 1.51 (Pasta)

Pull request description:

  Edit: I think test failure https://travis-ci.org/github/rust-bitcoin/rust-bitcoincore-rpc/builds/768616575 is unrelated

ACKs for top commit:
  GeneFerneau:
    tACK [541e99f](541e99f)
  tcharding:
    ACK 541e99f
  apoelstra:
    ACK 541e99f

Tree-SHA512: b2dc500fc036a763a77a7340b528a5973b62d44a672bb4d0fd3bc1c42a66886d77d92f159fa8897fa037b6988f918e36174633de93dfaed19a03c3f4517c91c0

Author: apoelstra