refactor(tpldir): use tpldir or derivatives to make formula portable

[myii]

• Close Formula based off template can't be moved from the root salt directory #22.

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Adapted from the introduction in 068a94d (#28):

template-formula/template/macros.jinja

Line 46 in 068a94d

{%- set topdir = tpldir.split('/')[0] %}

[myii]

@vutny I'm particularly interested in applying this workaround/fix to the remaining files in postgres-formula, since most of that formula has been made portable. What do you think?

[myii]

@aboe76 Thanks for the review. Do you mind merging it? Hopefully, @vutny and I can have the conversation over at the postgres-formula.

[aboe76]

@myii merged it

[myii]

On Sun, 24 Feb 2019 03:10:21 -0800, Niels Abspoel wrote: @myii merged it

@aboe76 Thanks, got another PR based on this branch which I'll send soon.

…

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[saltstack-formulas-travis]

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