TT#49102 Improve package description

- Remove trailing dot in summary.
- Wrap long description line.

Change-Id: Ie6844f25d7bcdc6314c76cd8b560aff4587ab3f0

debian/control

@@ -18,5 +18,6 @@ Depends:
  ${perl:Depends},
 Conflicts:
  ngcp-ossbss-billing (<= 3),
-Description: CDR export utilities for NGCP platforms.
- These utilities export CDRs generated by NGCP platforms to CSV files that can be fetched by 3rd party tools.
+Description: CDR export utilities for NGCP platforms
+ These utilities export CDRs generated by NGCP platforms to CSV files that
+ can be fetched by 3rd party tools.