brew/Library
Jack Nagel 68124d481f Unify 'which' and which_s' utility methods
'which' only returns a Pathname or nil, and doesn't care about anything
sent to stderr, so just silence it by default and combine the two
methods.

Closes Homebrew/homebrew#12115.

Signed-off-by: Jack Nagel <jacknagel@gmail.com>
2012-05-07 21:05:47 -05:00
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