[Toybox] toybox sed broken in Android Marshmallow (6.0) for LP32

[enh]

[since bug reports are as likely to come here as anywhere, FYI...]

The toybox sed shipped in Android M doesn't work on LP32. (LP64 is
unaffected by this.) We build toybox with _FILE_OFFSET_BITS=64 and
there was a previously undiscovered off_t lurking in <regex.h>. This
is fixed in AOSP master by
https://android-review.googlesource.com/#/c/168337/ but was found too
late to fix for M.

-- 
Elliott Hughes - http://who/enh - http://jessies.org/~enh/
Android native code/tools questions? Mail me/drop by/add me as a reviewer.