Fix travis_install.sh

dev/bots/travis_install.sh

diff --git a/dev/bots/travis_install.sh b/dev/bots/travis_install.sh
index 91cd40d..0bde306 100755
--- a/dev/bots/travis_install.sh
+++ b/dev/bots/travis_install.sh
@@ -2,6 +2,6 @@
 set -ex
 
 if [ -n "$TRAVIS" ] && [ "$TRAVIS_PULL_REQUEST" == "false" ]; then
-  - gem install coveralls-lcov
-  - npm install -g firebase-tools@">=3.0.4 <3.1.0"
+  gem install coveralls-lcov
+  npm install -g firebase-tools@">=3.0.4 <3.1.0"
 fi