[boost] [fusion]enabler.hpp junk character at start of file

Subject: [boost] [fusion]enabler.hpp junk character at start of file
From: Aparna Kumta (aparna.kumta_at_[hidden])
Date: 2016-01-12 15:28:30

All accumulator tests fail when compiled with Oracle Solaris Studio in 
'dev' branch as follows:

"../boost/fusion/support/detail/enabler.hpp", line 1: Error: A declaration was expected instead of "???".
1 Error(s) and 1 Warning(s) detected.

See
http://www.boost.org/development/tests/develop/developer/output/oracle-sparc-S2-12-5-cpp11-boost-bin-v2-libs-accumulators-test-count-test-sun-12-5_cpp11-release-link-static-threading-multi.html

It appears that in file boost/fusion/support/detail/enabler.hpp, there 
is some junk character at the start of file. This cannot be observed via 
vi editor, but with ' head -1 enabler.hpp', this can be seen.
% head -1 enabler.hpp
���/*=====================================

Perhaps these characters should be removed?
When I view the file on github, I do not see the issue, however when I 
try to edit the file, I see it.
Will submit a PR.

Thanks,

Aparna