K 10
svn:author
V 3
pfg
K 8
svn:date
V 27
2017-04-20T17:43:25.129753Z
K 7
svn:log
V 335
libthread_db: unsign map_len and use reallocarray(3).

Lengths are not negative, so map_len should be unsigned. Unsign the
corresponding indexes too and bring a small use of reallocarray(3).

Reorder the memset to be consistent with the realloc: it appears we
were only clearing half the memory in pt_map_thread().

MFC after:	2 weeks

END