fix(@angular/cli): remove color from help epilogue

In some cases gray doesn't provide enough contrast.

(cherry picked from commit 4fa039b)

Author: alan-agius4

packages/angular/cli/src/command-builder/command-runner.ts

@@ -147,7 +147,7 @@ export async function runCommand(args: string[], logger: logging.Logger): Promis
       'deprecated: %s': colors.yellow('deprecated:') + ' %s',
       'Did you mean %s?': 'Unknown command. Did you mean %s?',
     })
-    .epilogue(colors.gray('For more information, see https://angular.io/cli/.\n'))
+    .epilogue('For more information, see https://angular.io/cli/.\n')
     .demandCommand(1, demandCommandFailureMessage)
     .recommendCommands()
     .middleware(normalizeOptionsMiddleware)