Fix typo reported by @cel4

Author: mdboom

.travis.yml

@@ -45,5 +45,5 @@ script:
 after_failure:
   - tar cjf result_images.tar.bz2 result_images
   - if [[ $TRAVIS_PULL_REQUEST == false ]]; then gem install travis-artifacts; fi
-  - if [[ $TRAVIS_PULL_REQUEST == falst ]]; then travis-artifacts upload --path result_images.tar.bz2; fi
+  - if [[ $TRAVIS_PULL_REQUEST == false ]]; then travis-artifacts upload --path result_images.tar.bz2; fi
   - if [[ $TRAVIS_PULL_REQUEST != false ]]; then echo "The result images will only be uploaded if they are on the matplotlib/matplotlib repo - this is for security reasons to prevent arbitrary PRs echoing security details." else echo https://s3.amazonaws.com/matplotlib-test-results/artifacts/${TRAVIS_BUILD_NUMBER}/${TRAVIS_JOB_NUMBER}/result_images.tar.bz2; fi