Update to TypeScript 3.7 (#3275)

and update to prettier 1.19

Also, update `assert()` and remove not null assertions where possibly
in `cli`.

Closes #3273

1 files changed, 10 insertions, 12 deletions

diff --git a/std/fmt/sprintf_test.ts b/std/fmt/sprintf_test.ts
index 4d3a48c68..26757c3cc 100644
--- a/std/fmt/sprintf_test.ts
+++ b/std/fmt/sprintf_test.ts
@@ -587,18 +587,16 @@ const tests: Array<[string, any, string]> = [
 ];
 
 test(function testThorough(): void {
-  tests.forEach(
-    (t, i): void => {
-      //            p(t)
-      const is = S(t[0], t[1]);
-      const should = t[2];
-      assertEquals(
-        is,
-        should,
-        `failed case[${i}] : is >${is}< should >${should}<`
-      );
-    }
-  );
+  tests.forEach((t, i): void => {
+    //            p(t)
+    const is = S(t[0], t[1]);
+    const should = t[2];
+    assertEquals(
+      is,
+      should,
+      `failed case[${i}] : is >${is}< should >${should}<`
+    );
+  });
 });
 
 test(function testWeirdos(): void {