fix variable expansion in printf

Author: ppomes

.github/workflows/make-install.yml

@@ -55,7 +55,7 @@ jobs:
         curl -sSL "https://github.com/coreruleset/coreruleset/archive/refs/tags/v${CRS_VERSION}.tar.gz" -o /tmp/crs.tar.gz
         tar xzf /tmp/crs.tar.gz -C /tmp
         gcc -o tests/coraza_httpd tests/coraza_httpd.c $(pkg-config --cflags --libs libmicrohttpd) -lcoraza -I/usr/local/include -L/usr/local/lib
-        printf 'include coraza.conf\ninclude /tmp/coreruleset-${CRS_VERSION}/crs-setup.conf.example\ninclude /tmp/coreruleset-${CRS_VERSION}/plugins/empty-before.conf\ninclude /tmp/coreruleset-${CRS_VERSION}/rules/*.conf\ninclude /tmp/coreruleset-${CRS_VERSION}/plugins/empty-after.conf\n' > tests/coraza_includes.conf
+        printf "include coraza.conf\ninclude /tmp/coreruleset-${CRS_VERSION}/crs-setup.conf.example\ninclude /tmp/coreruleset-${CRS_VERSION}/plugins/empty-before.conf\ninclude /tmp/coreruleset-${CRS_VERSION}/rules/*.conf\ninclude /tmp/coreruleset-${CRS_VERSION}/plugins/empty-after.conf\n" > tests/coraza_includes.conf
         LD_LIBRARY_PATH=/usr/local/lib tests/coraza_httpd tests/coraza_includes.conf 8080 &
         for i in $(seq 1 10); do curl -sf http://127.0.0.1:8080/ > /dev/null 2>&1 && break; sleep 1; done
         ~/go/bin/go-ftw run --config tests/ftw.yml --dir /tmp/coreruleset-${CRS_VERSION}/tests/regression/tests/ --cloud --exclude "^920"