Rust: Tweak some wording.

Author: geoffw0

rust/ql/lib/codeql/rust/security/HardcodedCryptographicValueExtensions.qll

@@ -80,7 +80,7 @@ module HardcodedCryptographicValue {
   }
 
   /**
-   * A sink for hardcoded cryptographic value from model data.
+   * An externally modeled sink for hardcoded cryptographic value vulnerabilities.
    */
   private class ModelsAsDataSinks extends Sink {
     CryptographicValueKind kind;

rust/ql/src/queries/security/CWE-798/HardcodedCryptographicValue.qhelp

@@ -12,18 +12,18 @@ Hardcoded passwords, keys, initialization vectors and salts should not be used f
     Attackers can easily recover hardcoded values if they have access to the source code or compiled executable.
   </li>
   <li>
-    Some hardcoded values may be easily guessable.
+    Some hardcoded values are easily guessable.
   </li>
   <li>
-    Hardcoded values may leave cryptographic operations vulnerable to dictionary attacks, rainbow tables, and other forms of cryptanalysis.
+    Use of hardcoded values may leave cryptographic operations vulnerable to dictionary attacks, rainbow tables, and other forms of cryptanalysis.
   </li>
 </ul>
 
 </overview>
 <recommendation>
 
 <p>
-Use randomly generated key material, initialization vectors and salts. Use strong passwords that are not hardcoded in source code.
+Use randomly generated key material, initialization vectors and salts. Use strong passwords that are not hardcoded.
 </p>
 
 </recommendation>