Replace #21158 with a better patch from Hugo

(for [perl #23769]).

p4raw-id: //depot/perl@21174

1 files changed, 4 insertions, 10 deletions

diff --git a/regexec.c b/regexec.c
index d2e9c66358..464ceaf9e3 100644
--- a/regexec.c
+++ b/regexec.c
@@ -4065,16 +4065,10 @@ S_regrepeat(pTHX_ regnode *p, I32 max)
     case CANY:
 	scan = loceol;
 	break;
-    case EXACT:
-        if (do_utf8) {
-	     c = (U8)*STRING(p);
-	     while (scan < loceol && utf8_to_uvuni((U8*)scan, 0) == c)
-		  scan += UTF8SKIP(scan);
-	} else {		/* length of string is 1 */
-	     c = (U8)*STRING(p);
-	     while (scan < loceol && UCHARAT(scan) == c)
-		  scan++;
-	}
+    case EXACT:		/* length of string is 1 */
+	c = (U8)*STRING(p);
+	while (scan < loceol && UCHARAT(scan) == c)
+	    scan++;
 	break;
     case EXACTF:	/* length of string is 1 */
 	c = (U8)*STRING(p);