dimitri/el-get — pull request #627 by uchida (2012-03-02 08:03:48+00:00)
Title: fix pymacs recipe for the case PYTHONPATH is nil

Current pymacs recipe set additional path, default-directory, into PYTHONPATH.
However if PYTHONPATH is nil, "string-prefix-p(":" pp)" is evaluated as "string-prefix-p(":" nil)" and crash.
I fix "(unless (eq pp nil)" and else set default-directory to PYTHONPATH.