Update rust/ql/src/queries/security/CWE-117/LogInjection.qhelp

Co-authored-by: Sophie <[email protected]>

Author: geoffw0

rust/ql/src/queries/security/CWE-117/LogInjection.qhelp

@@ -18,7 +18,7 @@ arbitrary HTML may be included to spoof log entries.</p>
 User input should be suitably sanitized before it is logged.
 </p>
 <p>
-If the log entries are in plain text then line breaks should be removed from user input, using
+If the log entries are in plain text, then line breaks should be removed from user input using
 <code>String::replace</code> or similar. Care should also be taken that user input is clearly marked
 in log entries.
 </p>