Change 'tsc --init' to default to 'strict: true'

src/compiler/commandLineParser.ts

@@ -525,7 +525,7 @@ namespace ts {
     export const defaultInitCompilerOptions: CompilerOptions = {
         module: ModuleKind.CommonJS,
         target: ScriptTarget.ES5,
-        strict: false,
+        strict: true,
         sourceMap: false,
     };