Make single byte caching more elegant.

1 files changed, 1 insertions, 1 deletions

diff --git a/io.c b/io.c
index af15aa02..7cf48911 100644
--- a/io.c
+++ b/io.c
@@ -2689,7 +2689,7 @@ rs1scan(IOBUF *iop, struct recmatch *recm, SCANSTATE *state)
 		do {
 			if (*bp == rs)
 				found = 1;
-			if (is_valid_character((unsigned char)*bp))
+			if (is_valid_character(*bp))
 				mbclen = 1;
 			else
 				mbclen = mbrlen(bp, len, &mbs);