Further reduce unnecessary rune array conversion

I was too quick to release 0.16.9, this commit makes --ansi processing
even faster.

1 files changed, 2 insertions, 2 deletions

diff --git a/src/core.go b/src/core.go
index 3e60934a..74ff9e7f 100644
--- a/src/core.go
+++ b/src/core.go
@@ -69,14 +69,14 @@ func Run(opts *Options, revision string) {
 			ansiProcessor = func(data []byte) (util.Chars, *[]ansiOffset) {
 				trimmed, offsets, newState := extractColor(string(data), state, nil)
 				state = newState
-				return util.RunesToChars([]rune(trimmed)), offsets
+				return util.ToChars([]byte(trimmed)), offsets
 			}
 		} else {
 			// When color is disabled but ansi option is given,
 			// we simply strip out ANSI codes from the input
 			ansiProcessor = func(data []byte) (util.Chars, *[]ansiOffset) {
 				trimmed, _, _ := extractColor(string(data), nil, nil)
-				return util.RunesToChars([]rune(trimmed)), nil
+				return util.ToChars([]byte(trimmed)), nil
 			}
 		}
 	}