minor spelling changes

Change-Id: I173d9a04049d88b2a9f5c87b6dc82ef057482fe4
Signed-off-by: tierno <alfonso.tiernosepulveda@telefonica.com>
diff --git a/osm_common/dbbase.py b/osm_common/dbbase.py
index 7428ed9..7f87663 100644
--- a/osm_common/dbbase.py
+++ b/osm_common/dbbase.py
@@ -61,7 +61,7 @@
         """
         Connect to database
         :param config: Configuration of database. Contains among others:
-            host:   database hosst (mandatory)
+            host:   database host (mandatory)
             port:   database port (mandatory)
             name:   database name (mandatory)
             user:   database username