The read builtin in most shells will interpret backslash characters
as escapes, and they are lost when reading binfmt files line-by-line.
This causes magic strings containing backslashes to be mangled and
become invalid, resulting in erroneous 'invalid entry' messages.
The -r option to read disables special handling of backslashes and
keeps all lines intact.
X-Gentoo-Bug: 575114
X-Gentoo-Bug-URL: https://bugs.gentoo.org/show_bug.cgi?id=575114
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