misra-test.c: updated test with expected finding now EOF is no longer unknown

Author: firewave

addons/test/misra/misra-test.c

@@ -2029,7 +2029,7 @@ static void misra_22_5(FILE *f) {
 
 static void misra_22_7(char ch)
 {
-    if (EOF == ch) {} // 22.7
+    if (EOF == ch) {} // 10.4 // TODO: 22.7 - #1289
 }
 
 static void misra_22_8(void)