Make wording less confusing

src/test/ui/const-generics/foreign-item-const-parameter.stderr

@@ -12,7 +12,7 @@ error[E0044]: foreign items may not have const parameters
 LL |     fn foo<const X: usize>();
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^ can't have const parameters
    |
-   = help: use specialization instead of const parameters by replacing them with concrete consts
+   = help: replace the const parameters with concrete consts
 
 error[E0044]: foreign items may not have type or const parameters
   --> $DIR/foreign-item-const-parameter.rs:7:5
@@ -20,7 +20,7 @@ error[E0044]: foreign items may not have type or const parameters
 LL |     fn bar<T, const X: usize>(_: T);
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ can't have type or const parameters
    |
-   = help: use specialization instead of type or const parameters by replacing them with concrete types or consts
+   = help: replace the type or const parameters with concrete types or consts
 
 error: aborting due to 2 previous errors
 

src/test/ui/error-codes/E0044.rs

@@ -1,7 +1,7 @@
 extern {
     fn sqrt<T>(f: T) -> T;
     //~^ ERROR foreign items may not have type parameters [E0044]
-    //~| HELP use specialization instead of type parameters by replacing them with concrete types
+    //~| HELP replace the type parameters with concrete types
     //~| NOTE can't have type parameters
 }
 

src/test/ui/error-codes/E0044.stderr

@@ -4,7 +4,7 @@ error[E0044]: foreign items may not have type parameters
 LL |     fn sqrt<T>(f: T) -> T;
    |     ^^^^^^^^^^^^^^^^^^^^^^ can't have type parameters
    |
-   = help: use specialization instead of type parameters by replacing them with concrete types like `u32`
+   = help: replace the type parameters with concrete types like `u32`
 
 error: aborting due to previous error
 

src/test/ui/generic/generic-extern.stderr

@@ -4,7 +4,7 @@ error[E0044]: foreign items may not have type parameters
 LL |     fn foo<T>();
    |     ^^^^^^^^^^^^ can't have type parameters
    |
-   = help: use specialization instead of type parameters by replacing them with concrete types like `u32`
+   = help: replace the type parameters with concrete types like `u32`
 
 error: aborting due to previous error