Log Message:
Update ruby193 to 1.9.3p374 (Ruby 1.9.3-p374).

These releasess don't include any security fixes.

Ruby 1.9.3-p362:

This release includes other many bug fixes.

    Resolved build problems on Solaris.
    Windows 8 support (hopefully).
    other many bug fixes.

Ruby 1.9.3-p374:

This release includes many bug fixes. Especially,

    Fixed randomly SEGV problem (often reported with Rails)
    Windows 8 support (maybe, hopefully)
    other many bug fixes.

See tickets and ChangeLog for details.