Fixup of second commit.

Author: michaelnebel

csharp/ql/lib/semmle/code/csharp/Generics.qll

@@ -287,7 +287,7 @@ class TypeParameterConstraints extends Element, @type_parameter_constraints {
   /** Holds if these constraints include a nullable reference type constraint. */
   predicate hasNullableRefTypeConstraint() { general_type_parameter_constraints(this, 5) }
 
-  /** Holds if these constraints include a not-null type constraint. */
+  /** Holds if these constraints include a notnull type constraint. */
   predicate hasNotNullTypeConstraint() { general_type_parameter_constraints(this, 6) }
 
   /** Gets a textual representation of these constraints. */