SQOOP-3135: Improve error message of Sqoop in case of missing password
by adding the related ParseException stack trace

(Eric Lin via Attila Szabo)
diff --git a/src/java/org/apache/sqoop/tool/JobTool.java b/src/java/org/apache/sqoop/tool/JobTool.java
index 8e1669c..054e274 100644
--- a/src/java/org/apache/sqoop/tool/JobTool.java
+++ b/src/java/org/apache/sqoop/tool/JobTool.java
@@ -126,7 +126,7 @@
       childTool.appendArgs(extraChildArgv);
       childTool.validateOptions(childOptions);
     } catch (ParseException pe) {
-      LOG.error("Error parsing arguments to the job-specific tool.");
+      LOG.error("Error parsing arguments to the job-specific tool: ", pe);
       LOG.error("See 'sqoop help <tool>' for usage.");
       return 1;
     } catch (SqoopOptions.InvalidOptionsException e) {