Spelling fixes

Spelling errors found using github.com/lucasdemarchi/codespell
A tool to fix common misspellings.
This tool is licensed under GNU General Public License, version 2.

Change-Id: I13bbeeb8f1467efc1cf8748e1a66343e879dfc8a
Signed-off-by: Gunnar Mills <gmills@us.ibm.com>
diff --git a/lib/connection_client.robot b/lib/connection_client.robot
index dc8834d..3a51f60 100755
--- a/lib/connection_client.robot
+++ b/lib/connection_client.robot
@@ -75,7 +75,7 @@
 
     # alias            The alias of the connection to validate.
     # host             The DNS name or IP of the host to validate.
-    # connection_args  A dictionary of arguments to pass to Open Conection
+    # connection_args  A dictionary of arguments to pass to Open Connection
     #                  and Log In (see above) if the connection is not open. May
     #                  contain, but does not need to contain, the host or alias.