Fix documentation of the ccache part
Fix documentation of the ccache part

This patch fixes the comment that isn't fixed altogether in commit
70b6a82.

alexhenrie/poedit,alexhenrie/poedit,alexhenrie/poedit,vslavik/poedit,nawawi/poedit,PKRoma/poedit,PKRoma/poedit,PKRoma/poedit,vslavik/poedit,c72578/poedit,c72578/poedit,c72578/poedit,c72578/poedit,PKRoma/poedit,alexhenrie/poedit,nawawi/poedit,nawawi/poedit,vslavik/poedit,PKRoma/poedit,vslavik/poedit,vslavik/poedit,c72578/poedit,nawawi/poedit,nawawi/poedit,alexhenrie/poedit