Fix build breakage from r1618668

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/branches/branch_4x@1618674 13f79535-47bb-0310-9956-ffa450edef68
Merged revision(s) 1618672 from lucene/dev/trunk:
SOLR-6387: Add better error messages throughout Solr and supply a work around for Java bug #8047340 to SystemInfoHandler: On Turkish default locale, some JVMs fail to fork on MacOSX, BSD, AIX, and Solaris platforms.

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/branches/branch_4x@1618676 13f79535-47bb-0310-9956-ffa450edef68