Remove rtrim loop

Author: youkidearitai

ext/mbstring/mbstring.c

@@ -2968,24 +2968,18 @@ static zend_string* trim_each_wchar(zend_string *str, const HashTable *what_ht,
 		ZEND_ASSERT(out_len <= 128);
 		total_len += out_len;
 
-		if (mode & MB_LTRIM) {
-			for (size_t i = 0; i < out_len; i++) {
-				uint32_t w = wchar_buf[i];
-				if (is_trim_wchar(w, what_ht)) {
+		for (size_t i = 0; i < out_len; i++) {
+			uint32_t w = wchar_buf[i];
+			if (is_trim_wchar(w, what_ht)) {
+				if (mode & MB_LTRIM) {
 					left += 1;
-				} else {
-					mode ^= MB_LTRIM;
-					break;
 				}
-			}
-		}
-
-		if (mode & MB_RTRIM) {
-			for (size_t j = 0; j < out_len; j++) {
-				uint32_t w = wchar_buf[j];
-				if (is_trim_wchar(w, what_ht)) {
+				if (mode & MB_RTRIM) {
 					right += 1;
-				} else {
+				}
+			} else {
+				mode &= ~MB_LTRIM;
+				if (mode & MB_RTRIM) {
 					right = 0;
 				}
 			}