tree 5a3f2ac9b850e98fa2b395ace957f9752c685912
parent 5fae09b7386de26db59a1184f62fc7b22ec7667b
author Baokun Lee <nototon@gmail.com> 1547636015 +0800
committer Bryan C. Mills <bcmills@google.com> 1547647390 +0000

cmd/go/internal/clean: fix clean -testcache does not clean test cache

Truncate changes the size of the file. It does not change the I/O offset.

Fixes #29757

Change-Id: I1aa9223a86d6a8ce3c0efc3ac1d7d7647b77f589
Reviewed-on: https://go-review.googlesource.com/c/158117
Reviewed-by: Bryan C. Mills <bcmills@google.com>