Update ui tests

src/test/ui/borrowck/issue-45983.stderr

@@ -10,3 +10,4 @@ LL |     give_any(|y| x = Some(y));
 
 error: aborting due to previous error
 
+For more information about this error, try `rustc --explain E0521`.

src/test/ui/borrowck/issue-7573.stderr

@@ -12,3 +12,4 @@ LL |         lines_to_use.push(installed_id);
 
 error: aborting due to previous error
 
+For more information about this error, try `rustc --explain E0521`.

src/test/ui/borrowck/regions-escape-bound-fn-2.stderr

@@ -10,3 +10,4 @@ LL |     with_int(|y| x = Some(y));
 
 error: aborting due to previous error
 
+For more information about this error, try `rustc --explain E0521`.

src/test/ui/borrowck/regions-escape-bound-fn.stderr

@@ -10,3 +10,4 @@ LL |     with_int(|y| x = Some(y));
 
 error: aborting due to previous error
 
+For more information about this error, try `rustc --explain E0521`.

src/test/ui/borrowck/regions-escape-unboxed-closure.stderr

@@ -10,3 +10,4 @@ LL |     with_int(&mut |y| x = Some(y));
 
 error: aborting due to previous error
 
+For more information about this error, try `rustc --explain E0521`.

src/test/ui/closures/closure-expected-type/expect-region-supply-region.stderr

@@ -20,3 +20,4 @@ LL |         f = Some(x);
 
 error: aborting due to 2 previous errors
 
+For more information about this error, try `rustc --explain E0521`.

src/test/ui/generator/ref-escapes-but-not-over-yield.stderr

@@ -12,3 +12,4 @@ LL |         a = &b;
 
 error: aborting due to previous error
 
+For more information about this error, try `rustc --explain E0521`.

src/test/ui/nll/closure-requirements/propagate-approximated-shorter-to-static-comparing-against-free.stderr

@@ -83,4 +83,5 @@ LL | }
 
 error: aborting due to 2 previous errors
 
-For more information about this error, try `rustc --explain E0597`.
+Some errors have detailed explanations: E0521, E0597.
+For more information about an error, try `rustc --explain E0521`.

src/test/ui/nll/closure-requirements/propagate-approximated-shorter-to-static-no-bound.stderr

@@ -51,3 +51,4 @@ LL | |     });
 
 error: aborting due to previous error
 
+For more information about this error, try `rustc --explain E0521`.

src/test/ui/nll/closure-requirements/propagate-approximated-shorter-to-static-wrong-bound.stderr

@@ -51,3 +51,4 @@ LL | |     });
 
 error: aborting due to previous error
 
+For more information about this error, try `rustc --explain E0521`.

src/test/ui/nll/outlives-suggestion-simple.stderr

@@ -106,3 +106,4 @@ LL |         Bar2::new(&self)
 
 error: aborting due to 9 previous errors
 
+For more information about this error, try `rustc --explain E0521`.

src/test/ui/nll/user-annotations/closure-substs.stderr

@@ -38,3 +38,4 @@ LL |         b(x);
 
 error: aborting due to 4 previous errors
 
+For more information about this error, try `rustc --explain E0521`.

src/test/ui/regions/issue-78262.nll.stderr

@@ -8,3 +8,4 @@ LL |     let f = |x: &dyn TT| x.func();
 
 error: aborting due to previous error
 
+For more information about this error, try `rustc --explain E0521`.