[8u] RFR (S) 8165936: Potential Heap buffer overflow when seaching timezone info files

[Aleksey Shipilev]

Original bug:
  https://bugs.openjdk.java.net/browse/JDK-8165936
  https://hg.openjdk.java.net/jdk9/jdk9/jdk/rev/8ec0559cbd7e

Unfortunately, the patch does apply directly to 8u:
 - TimeZone_md.c for unixes is actually in "solaris" folder
 - ...and then the context is different enough for fuzz to fail

8u webrev:
  https://cr.openjdk.java.net/~shade/8165936/webrev.8u.01/

Testing: tier1

-- 
Thanks,
-Aleksey