Log Message:
(devel/p5-Cache-FastMmap) Updated 1.47 5o 1.48

1.48 Thu Apr 11 11:30 2019
  - Remove use of // so we should work on 5.8 again
  - Replace -1 with a NOPAGE constant
  - Use 64bit offsets so we support caches > 4G
  - Various valgrind code fixes
    Thanks to oschwald@gmail.com