[R-SIG-Mac] a bug in R Mac GUI

[Randy Lai]

Hi guys,

I have fixed a bug in R Mac GUI that the comment symbol # is trimmed when cleanup history entries is checked.
This only works for R 3.0.x for Mac.

 A complied version can be found in the following link.

the fix: https://github.com/randy3k/R-Mac-GUI/commit/d8d387236b208d49b3cda9a3d82ca72e70b40110
the binary: https://github.com/randy3k/R-Mac-GUI/releases