Fix syntax.

Author: notroj

.travis.yml

@@ -22,7 +22,7 @@ matrix:
     - name: Maintainer-mode, no IPv6
       env: CONFIG="--enable-maintainer-mode --disable-ipv6"
     - name: Maintainer-mode, -Werror
-      env: NOTEST_CFLAGS=-Werror CONFIG="--enable-maintainer-mode
+      env: NOTEST_CFLAGS=-Werror CONFIG="--enable-maintainer-mode"
 
 before_script: sudo sh -c 'echo 0 > /proc/sys/net/ipv6/conf/all/disable_ipv6'