Xu Cheng e547438ff4 cmd/info: prevent duplicate dependency display.
Before:

    $ brew info llvm
    ==> Dependencies
    Build: xz ✔, xz ✔, xz ✔, xz ✔, xz ✔, xz ✔

    $ brew info --json=v1 llvm
    ... "dependencies":["xz","xz","xz","xz","xz","xz"], ...

After

    $ brew info llvm
    ==> Dependencies
    Build: xz ✔

    $ brew info --json=v1 llvm
    ... "dependencies":["xz"], ...

Closes Homebrew/homebrew#36653.

Signed-off-by: Mike McQuaid <mike@mikemcquaid.com>
2015-02-08 15:53:30 +00:00
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