Fix license policy format for package allowlist

Author: Tooru

.license-policy.txt

@@ -17,5 +17,9 @@
 
 # Development/test dependencies with GPL licenses (not distributed)
 # These are transitive dependencies brought in by testing frameworks
-rfc3987       # Dev-only: GPL-licensed transitive dep; used only in test environment
-text-unidecode  # Dev-only: GPL/Artistic dual-licensed transitive dep; used only in test environment
+
+# rfc3987: Dev-only GPL-licensed transitive dep; used only in test environment
+rfc3987
+
+# text-unidecode: Dev-only GPL/Artistic dual-licensed transitive dep; used only in test environment
+text-unidecode