Hi Brian,

> maybe?
> echo -n `git rev-parse --abbrev-ref HEAD`
>
> It works on cmd line, not sure about within jam file...

I ended up with this, which seems to work as expected.. Thanks for pointing me in right direction, I thought it was a bug that linefeed was captured.

local GIT_BRANCH = [ SHELL "git rev-parse --abbrev-ref HEAD | tr -d '\n'" ] ;
echo "before$(GIT_BRANCH)after" ;

BR,
Martin
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