Merged r11091 from trunk (#12711, #11290)...
Merged r11091 from trunk (#12711, #11290)
fix incorrect min_x_value of lib/SVG/Graph/TimeSeries.rb by r10439.
git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/branches/2.2-stable@11093 e93f8b46-1217-0410-a6f0-8f06a7374b81