Description of problem:
When testing bug 1358484 I have noticed that diff generated by `rhncfg-manager diff ...` does not wrap added ("+") and removed ("-") lines.


Version-Release number of selected component (if applicable):
rhncfg-management-5.10.98-1.el7.noarch


How reproducible:
always


Steps to Reproduce:
1. Create config channel and file in it with only "a" in it
2. Subscribe system to it and enable deploy actions on it:
   # rhn-actions-control --enable-all
3. Schedule deploy of all files on the system in webUI and make sure it happens:
   # rhn_check -vv
4. Alter deployed file:
   # date > /tmp/bz1358484
5. Run diff:
   # rhncfg-manager diff /tmp/bz1358484 -c bz1358484


Actual results:
# rhncfg-manager diff /tmp/bz1358484 -c bz1358484
Using server name <fqdn>
--- /tmp/bz1358484	2016-11-10 22:29:50.843000+01:00	attributes: -rw-r--r-- root root 	config channel: bz1358484	revision: 1
+++ /tmp/bz1358484	2016-11-10 22:33:09	attributes: -rw-r--r-- root root unconfined_u:object_r:user_tmp_t:s0	config channel: local file	revision: None
@@ -1 +1 @@
-a+Thu Nov 10 22:33:09 CET 2016


Expected results:
# rhncfg-manager diff /tmp/bz1358484 -c bz1358484
Using server name <fqdn>
--- /tmp/bz1358484	2016-11-10 22:29:50.843000+01:00	attributes: -rw-r--r-- root root 	config channel: bz1358484	revision: 1
+++ /tmp/bz1358484	2016-11-10 22:33:09	attributes: -rw-r--r-- root root unconfined_u:object_r:user_tmp_t:s0	config channel: local file	revision: None
@@ -1 +1 @@
-a
+Thu Nov 10 22:33:09 CET 2016


Additional info:
I have not checked if this is a regression against older SW releases or not.