Minor tweaks to QLDocs

Author: owen-mc

java/ql/lib/semmle/code/java/security/AndroidIntentRedirection.qll

@@ -35,7 +35,7 @@ private class DefaultIntentRedirectionSink extends IntentRedirectionSink {
   DefaultIntentRedirectionSink() { sinkNode(this, "intent-redirection") }
 }
 
-/** External sanitizers for Intent redirection vulnerabilities. */
+/** An external sanitizer for Intent redirection vulnerabilities. */
 private class ExternalIntentRedirectionSanitizer extends IntentRedirectionSanitizer {
   ExternalIntentRedirectionSanitizer() { barrierNode(this, "intent-redirection") }
 }

java/ql/lib/semmle/code/java/security/FragmentInjection.qll

@@ -50,7 +50,7 @@ private class DefaultFragmentInjectionSink extends FragmentInjectionSink {
 }
 
 /**
- * A barrier for Fragment injection vulnerabilities.
+ * A sanitizer for Fragment injection vulnerabilities.
  */
 abstract class FragmentInjectionSanitizer extends DataFlow::Node { }