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path/filepath: document Dir better

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This comment matches the one in path.

Fixes #4837.

R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/7305100
This commit is contained in:
Russ Cox 2013-02-19 13:24:03 -05:00
parent 1fe8fdf708
commit 6df181a7f0
1 changed files with 2 additions and 1 deletions
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3
src/pkg/path/filepath/path.go
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@ -437,7 +437,8 @@ func Base(path string) string {
}
// Dir returns all but the last element of path, typically the path's directory.
// Trailing path separators are removed before processing.
// After dropping the final element, the path is Cleaned and trailing
// slashes are removed.
// If the path is empty, Dir returns ".".
// If the path consists entirely of separators, Dir returns a single separator.
// The returned path does not end in a separator unless it is the root directory.