Update .github/workflows/check-backport-labels.yml

Author: flobernd

.github/workflows/check-backport-labels.yml

@@ -82,8 +82,8 @@ jobs:
           echo "::endgroup::"
 
           if [ "${has_exact_backport_label}" != true ]; then
-            echo "::error::No exact backport label found. Please add at least one of the "\
-                 "'backport {major}.{minor}' labels or use 'skip-backport', "\
+            echo "::error::No exact backport label found. Please add at least one of the"\
+                 "'backport {major}.{minor}' labels or use 'skip-backport',"\
                  "if this PR should not be backported."
             exit 1
           fi