rust-lang/rust — pull request #17331 by kballard (2014-09-17 01:54:16+00:00)
Title: Fix the inverted RUST_LOG filter

RUST_LOG supports regex filtering of log messages with a syntax like
`RUST_LOG=main/foo` to use the regex filter 'foo'. Unfortunately, the
filter was inverted, so `RUST_LOG=main/foo` would actually show all
messages except the ones containing 'foo'.