K 10
svn:author
V 6
jilles
K 8
svn:date
V 27
2014-06-09T10:39:55.060129Z
K 7
svn:log
V 250
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.

PR:		190735
Submitted by:	Kirk Russell
MFC after:	1 week

END