Change to ArgumentDefaultsHelpFormatter.

Changed from this:
formatter_class=argparse.RawTextHelpFormatter

To this:
formatter_class=argparse.ArgumentDefaultsHelpFormatter

This greatly improves the formatting of the help text.

Change-Id: Ie3ad6afe0b3cda50e1b032c37a20ff22733de9bd
Signed-off-by: Michael Walsh <micwalsh@us.ibm.com>
diff --git a/bin/process_plug_in_packages.py b/bin/process_plug_in_packages.py
index c45f559..dc84105 100755
--- a/bin/process_plug_in_packages.py
+++ b/bin/process_plug_in_packages.py
@@ -54,7 +54,7 @@
                 " 0x00000200).  That is because the rightmost byte is" +
                 " reserverd for errors in calling the call point program" +
                 " rather than errors generated by the call point program.>",
-    formatter_class=argparse.RawTextHelpFormatter,
+    formatter_class=argparse.ArgumentDefaultsHelpFormatter,
     prefix_chars='-+')
 
 # Create arguments.