Small formatting change on S2198

rules/S2198/csharp/rule.adoc

@@ -1,6 +1,6 @@
 Certain mathematical comparisons will always return the same value, and should simply not be made. 
 
-These comparisons will always return `false`:
+These comparisons will return either always `true` or always `false` depending on the kind of comparison:
 
 * Comparing a `char` with a numeric constant that is outside of the range of `char`.
 * Comparing a `float` with a numeric constant that is outside of the range of `float`.