Fix compiling sources ending with an end-of-line comment
Fix compiling sources ending with an end-of-line comment

Sources ending with an end-of-line comment (not followed by a newline character) aren't wrapped properly. The second part of the wrapper is treated as part of the comment in such a case. Adding a newline character in fixes this issue.

tejasmanohar/node-sandboxed-module,felixge/node-sandboxed-module