Apply suggestions from code review

Co-authored-by: Juliette <663378+jrfnl@users.noreply.github.com>

Author: rodrigoprimo

src/Standards/Generic/Tests/CodeAnalysis/JumbledIncrementerUnitTest.1.inc

@@ -60,7 +60,7 @@ for ($i = 0; $i < 20; $i++) :
     endfor;
 endfor;
 
-// Sniff bails early when there is no incrementor in the outer for loop.
+// Sniff bails early when there is no incrementor in the third expression of the outer for loop.
 for ($i = 0; $i < 10;) {
     ++$i;
     for ($j = 0; $j < 5; $i++) {}

src/Standards/Generic/Tests/CodeAnalysis/JumbledIncrementerUnitTest.3.inc

@@ -1,6 +1,6 @@
 <?php
 
-// Intentional parse error (missing for body).
+// Intentional parse error (missing for conditions).
 // This should be the only test in this file.
 // Testing that the sniff is *not* triggered.
 for