K 10
svn:author
V 6
jilles
K 8
svn:date
V 27
2014-12-07T22:30:54.643332Z
K 7
svn:log
V 358
MFC r267265: truncate: Detect integer overflow, fix relative sizes, add tests.

The change to expand_number (r204654) broke detection of too large sizes and
relative sizes ('+'/'-').

Also add some tests.

The usr.bin/truncate/Makefile is slightly different in the MFC because
src.opts.mk does not exist in stable/10.

PR:		190735
Submitted by:	Kirk Russell

END