fix typo in documentation
Docker-DCO-1.1-Signed-off-by: Daniel Norberg (github: danielnorberg)
@@ -102,7 +102,7 @@ To force Docker to use devicemapper as the storage driver, use ``docker -d -s de
To set the DNS server for all Docker containers, use ``docker -d --dns 8.8.8.8``.
-To set the a DNS search domain for all Docker containers, use ``docker -d --dns-search example.com``.
+To set the DNS search domain for all Docker containers, use ``docker -d --dns-search example.com``.
To run the daemon with debug output, use ``docker -d -D``.
