SQOOP-2884: Document --temporary-rootdir

(Markus Kemper via Kate Ting)

src/docs/man/import-args.txt

@@ -49,6 +49,11 @@ include::import-common-args.txt[]
 --table (table-name)::
   The table to import
 
+--temporary-rootdir (path)::
+  Set location of temporary directory for files created during import (overrides default path "_sqoop")
+  This option only applies to the "import" command with "--append" or "--incremental lastmodified"
+  This option has the same affect as using -Dsqoop.test.import.rootDir=<path>
+
 --where (clause)::
   Import only the rows for which _clause_ is true.
   e.g.: `--where "user_id > 400 AND hidden == 0"`

src/docs/user/import.txt

@@ -82,6 +82,7 @@ Argument                          Description
                                   +--split-by <col>+ option.
 +\--table <table-name>+           Table to read
 +\--target-dir <dir>+             HDFS destination dir
++\--temporary-rootdir <dir>+      HDFS directory for temporary files created during import (overrides default "_sqoop")
 +\--warehouse-dir <dir>+          HDFS parent for table destination
 +\--where <where clause>+         WHERE clause to use during import
 +-z,\--compress+                  Enable compression