Commits on Jun 23, 2016

1. rustup-init: remove dependency on file command …

   Some distros don't install file(1) by default.  For the purposes of userspace
   architecture detection, rather than screenscrape file(1), we can check the ELF
   header directly with only tools that are included in the default coreutils.
   
   Note that printf is a builtin in some shells (like /bin/dash on Debian), and
   may be less featureful than the one from coreutils, but that the syntax here
   should work on all such shells.
   
   Tested against bash, dash, and busybox sh.

   

   zarvox committed Jun 23, 2016
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