Extract ChkBuild::Ruby.build_proc.
ChkBuild::Ruby::RubyVersion defined.
Add diff substitution patterns.
Split the first section.
Refinen different sections in title line.
Extract chkbuild/ibuild.rb.
chkbuild/iformat.rb extracted.
Move compress_file.
Unused methods removed.
Use @t.
Use @t.
Create compressed raw log in internal-build.
Invoke rsync from build.rb.
re-introduce start_time method.
Fix svn diff.
Fix git diff.
Fix cvs diff.
IFormat constructor simplified.
Extract ibuild_new and iformat_new.
Don't recopmute depsuffixed_name.