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/ 

        # Pathname./

(from ruby core)
---
    /(other)

---

(This method is an alias for Pathname#+.)

Appends a pathname fragment to `self` to produce a new Pathname object.

    p1 = Pathname.new("/usr")      # Pathname:/usr
    p2 = p1 + "bin/ruby"           # Pathname:/usr/bin/ruby
    p3 = p1 + "/etc/passwd"        # Pathname:/etc/passwd

    # / is aliased to +.
    p4 = p1 / "bin/ruby"           # Pathname:/usr/bin/ruby
    p5 = p1 / "/etc/passwd"        # Pathname:/etc/passwd

This method doesn't access the file system; it is pure string
manipulation.

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