all: use "reports whether" consistently instead of "returns whether"

Follow-up for CL 147037 and after Brad noticed the "returns whether"
pattern during the review of CL 150621.

Go documentation style for boolean funcs is to say:

    // Foo reports whether ...
    func Foo() bool

(rather than "returns whether")

Created with:

    $ perl -i -npe 's/returns whether/reports whether/' $(git grep -l "returns whether" | grep -v vendor)

Change-Id: I15fe9ff99180ad97750cd05a10eceafdb12dc0b4
Reviewed-on: https://go-review.googlesource.com/c/150918
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/src/path/filepath/symlink_windows.go b/src/path/filepath/symlink_windows.go
index 78cde4aa09..7095a6b4bd 100644
--- a/src/path/filepath/symlink_windows.go
+++ b/src/path/filepath/symlink_windows.go
@@ -43,7 +43,7 @@ func normBase(path string) (string, error) {
 	return syscall.UTF16ToString(data.FileName[:]), nil
 }
 
-// baseIsDotDot returns whether the last element of path is "..".
+// baseIsDotDot reports whether the last element of path is "..".
 // The given path should be 'Clean'-ed in advance.
 func baseIsDotDot(path string) bool {
 	i := strings.LastIndexByte(path, Separator)