fix RGAA 1.2 criterium: applogo alt image should be empty (ref #2345)

9 jobs for master in 23 minutes and 53 seconds (queued for 18 minutes and 43 seconds)
latest
Status Job ID Name Coverage
  Build
passed #32675
autopkgtest

00:02:09

passed #32679
build_bionic

00:03:50

passed #32677
build_buster

00:02:57

passed #32680
build_centos_7

00:05:31

passed #32681
build_centos_8

00:03:22

passed #32678
build_disco

00:03:00

failed #32676
build_stretch

00:03:02

 
  Sign
skipped #32682
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  Deploy
skipped #32683
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Name Stage Failure
failed
build_stretch Build
dh_auto_test: make -j4 test returned exit code 2
debian/rules:21: recipe for target 'build' failed
make: *** [build] Error 2
dpkg-buildpackage: error: debian/rules build gave error exit status 2
debuild: fatal error at line 1116:
dpkg-buildpackage -rfakeroot -us -uc failed
ci-build-pkg: debuild failed
Cleaning up file based variables
ERROR: Job failed: exit code 1