ci: fix file count report

Author: alandefreitas

.github/workflows/ci.yml

@@ -645,7 +645,7 @@ jobs:
               [[ $generator = xml && $variant = multi ]] && continue
               [[ $variant = multi ]] && multipage="true" || multipage="false"
               mrdocs --config="$(pwd)/boost/libs/url/doc/mrdocs.yml" "../CMakeLists.txt" --output="$(pwd)/demos/boost-url/$variant/$generator" --multipage=$multipage --generate="$generator"
-              echo "Number of files in demos/boost-url/$variant/$format: $(find demos/boost-url/$variant/$format -type f | wc -l)"
+              echo "Number of files in demos/boost-url/$variant/$generator: $(find demos/boost-url/$variant/$generator -type f | wc -l)"
             done
           done