Danger fails if no lint report is created

[tobiasschuerg]

Using gradle 4.6, gradle build tools 3.2.1 and a target SDK of 28 no lint report is created, if there are no issues found. (tobiasschuerg/FittedDrawable#2)

...
:library:lint
Ran lint on variant release: 0 issues found
Ran lint on variant debug: 0 issues found

and thus, Danger fails:

BUILD SUCCESSFUL in 17s
56 actionable tasks: 2 executed, 54 up-to-date
[!] The exception involves the following plugins:
 -  danger-android_lint
bundler: failed to load command: danger (/usr/local/bin/danger)
Danger::DSLError: 
[!] Invalid `Dangerfile` file: No such file or directory @ rb_sysopen - file:///bitrise/src/library/build/reports/lint-results.xml
 #  from Dangerfile:20
 #  -------------------------------------------
 #  android_lint.report_file = "file:///bitrise/src/library/build/reports/lint-results.xml"
 >  android_lint.lint(inline_mode: true)
 #  android_lint.lint
 #  -------------------------------------------

If issues are found, the report is generated and everything works fine.