[LyX/master] Remove trailing space at the end of \author

[Guillaume Munch]

commit 355f9a0efc9f90406c69aeab8c57220d0735154c
Author: Guillaume Munch <g...@lyx.org>
Date:   Fri Nov 13 18:40:10 2015 +0000

    Remove trailing space at the end of \author
    
    Checked that the change is compatible with lyx2lyx (relevant lines are in
    lyx_2_0.py).

diff --git a/src/Author.cpp b/src/Author.cpp
index d44af3d..bd9d12d 100644
--- a/src/Author.cpp
+++ b/src/Author.cpp
@@ -64,8 +64,9 @@ bool operator==(Author const & l, Author const & r)
 ostream & operator<<(ostream & os, Author const & a)
 {
        // FIXME UNICODE
-       os << a.buffer_id_ << " \"" << to_utf8(a.name_)
-                       << "\" " << to_utf8(a.email_);
+       os << a.buffer_id_ << " \"" << to_utf8(a.name_) << "\"";
+       if (!a.email_.empty())
+               os << " " << to_utf8(a.email_);
 
        return os;
 }