Travis CI: Turn on branch coverage in lcov

Author: ivmai

.travis.yml

@@ -625,7 +625,7 @@ script:
 
 after_success:
 - if [[ "$REPORT_COVERAGE" == true ]]; then
-    lcov --capture --directory src --directory tests --output-file coverage.info &&
+    lcov --capture --directory src --directory tests --rc lcov_branch_coverage=1 --output-file coverage.info &&
     lcov --remove coverage.info 'tests/*' --output-file coverage.info &&
     lcov --list coverage.info &&
     coveralls-lcov --repo-token=${COVERALLS_REPO_TOKEN} --branch=${TRAVIS_BRANCH} --verbose coverage.info;