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slight tweak to ENV docs #30671

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Jan 10, 2019
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slight tweak to ENV docs #30671

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5 changes: 3 additions & 2 deletions base/env.jl
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Original file line number Diff line number Diff line change
Expand Up @@ -70,8 +70,9 @@ Reference to the singleton `EnvDict`, providing a dictionary interface to system
variables.

(On Windows, system environment variables are case-insensitive, and `ENV` correspondingly converts
all keys to uppercase for display, iteration, and copying. Portable code should not rely on the
existence of lower-case environment variables or on the ability to distinguish variables by case.)
all keys to uppercase for display, iteration, and copying. Portable code should not rely on the
ability to distinguish variables by case, and should beware that setting an ostensibly lowercase
variable may result in an uppercase `ENV` key.)
"""
const ENV = EnvDict()

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