strings: adding micro-optimization for TrimSpace
replace for string's end trimming TrimFunc -> TrimRightFunc
strings.TrimSpace string's end trimming should use more specific TrimRightFunc instead of common TrimFunc (because start has already trimmed before)
Change-Id: I827f1a25c141e61edfe1f8b11f6e8cd685f8b384
GitHub-Last-Rev:
040607a8314222f5958b96eb1bc20d840d1bcaac
GitHub-Pull-Request: golang/go#46862
Reviewed-on: https://go-review.googlesource.com/c/go/+/329731
Auto-Submit: Russ Cox <rsc@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Russ Cox <rsc@golang.org>
Reviewed-by: Russ Cox <rsc@golang.org>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>