sstephenson/ruby-build — pull request #535 by Fleurer (2014-03-27 04:57:58+00:00)
Title: link the latest log to /tmp/ruby-build.latest.log

currently the logs and tmp files would be stored at path like `"${TMP}/ruby-build.${SEED}.log"`, which is not easy for human eye to find out the current log file.

this pr soft link the latest log file to TMP/ruby-build.latest.log, and link the tmp directory to TMP/ruby-build.latest/