PIG-1513: Pig doesn't handle empty input directory
PIG-1513: Pig doesn't handle empty input directory

git-svn-id: 8c49d51cc539c84b28b5042abd6e265f31af12f8@980887 13f79535-47bb-0310-9956-ffa450edef68

apache/pig,apache/pig,apache/pig,apache/pig,apache/pig,apache/pig,apache/pig