reproduce.tt: Wrap script to prevent problems piping into bash

Dependencies

• [2] UROSQNYP reproduce.tt: Add --print-flags option
• [*] HZWUT4YN Allow users to reproduce builds on their own systems
• [*] 5Q4ZLL37 reproduce.tt: Add --help flag

Change contents

• edit in src/root/reproduce.tt at line 2
  [5.21]

  [4.539]
  +

  + main() {
• edit in src/root/reproduce.tt at line 216
  [2.487]
  +

  + }

  +

  + main