debian/control: fix typo

Change-Id: Ia9f99016dcf2a9584b59a253d19f391e8f5e5abb
diff --git a/debian/control b/debian/control
index feb988b..8a1aaa2 100644
--- a/debian/control
+++ b/debian/control
@@ -253,7 +253,7 @@
  (at least) other programs that are developed in the sphere of Free Software /
  Open Source mobile communication.
  .
- This package contains the documentation for the libosmoisdnm library.
+ This package contains the documentation for the libosmoisdn library.
 
 Package: libosmovty9
 Section: libs