tree 371ce359163cc9bc45a1ca79995cd9b8d50807f9
parent b9867a03d9f64b89a31ea8a7bea751698e996b23
author Brian Silverman <bsilver16384@gmail.com> 1583392734 -0800
committer Brian Silverman <bsilver16384@gmail.com> 1583622305 -0800

Close the fd immediately after mmaping it

http://man7.org/linux/man-pages/man2/mmap.2.html states that this is
allowed, and it simplifies the code a bit.

Change-Id: Ic439e65f248a2cec69b7ea8389a9e06637c6d4d0