hg: code-tools/jtreg: tolerate/ignore bad build numbers in build info

[jonathan.gibbons at oracle.com]

Changeset: 4d9f15e50b5e
Author:    jjg
Date:      2016-04-12 17:34 -0700
URL:       http://hg.openjdk.java.net/code-tools/jtreg/rev/4d9f15e50b5e

tolerate/ignore bad build numbers in build info

! src/share/classes/com/sun/javatest/regtest/Version.java