[HDFS-dev] [jira] [Created] (HDFS-2125) No error message returned when we use "hdfs dfs -copyFromLocal" in error

No error message returned when we use "hdfs dfs -copyFromLocal" in error
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Key: HDFS-2125
URL: https://issues.apache.org/jira/browse/HDFS-2125
Project: Hadoop HDFS
Issue Type: Bug
Reporter: 严金双


while using "dfs -copyFromLocal" without dest path the error message is inadequate.
For instance:

$hdfs dfs -copyFromLocal /work/tmp/xg
copyFromLocal: `.': File exists

However, more useful message is expected.