Python: Reword qhelp text

Co-authored-by: Felicity Chapman <felicitymay@github.com>

Author: RasmusWL

python/ql/src/Security/CWE-022/PathInjection.qhelp

@@ -43,7 +43,7 @@ In the second example, it appears that the user is restricted to opening a file
 special characters. For example, the string <code>"../../../etc/passwd"</code> will result in the code
 reading the file located at <code>"/server/static/images/../../../etc/passwd"</code>, which is the system's
 password file. This file would then be sent back to the user, giving them access to all the
-system's passwords. Note that it is still possible to use an absolute path, since the result of
+system's passwords. Note that a user could also use an absolute path here, since the result of
 <code>os.path.join("/server/static/images/", "/etc/passwd")</code> is <code>"/etc/passwd"</code>.
 </p>