Don't try to draw description if it"s empty

2 jobs for master in 5 minutes and 49 seconds (queued for 1 second)
Status Job ID Name Coverage
  Build
failed #67673
build_clazy_clang_tidy

00:05:49

passed #67672
linux kf5-qt5 qt5.12

00:05:22

0.0%
 
Name Stage Failure
failed
build_clazy_clang_tidy Build
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No provider of 'clazy' found.
'clazy' not found in package names. Trying capabilities.
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WARNING: JUnitTestResults.xml: no matching files
ERROR: No files to upload
ERROR: Job failed: exit code 1