Simplify cast of string to rune slice in wildcard matching (minio#9577)

pkg/wildcard/match.go

@@ -26,16 +26,8 @@ func MatchSimple(pattern, name string) bool {
 	if pattern == "*" {
 		return true
 	}
-	rname := make([]rune, 0, len(name))
-	rpattern := make([]rune, 0, len(pattern))
-	for _, r := range name {
-		rname = append(rname, r)
-	}
-	for _, r := range pattern {
-		rpattern = append(rpattern, r)
-	}
-	simple := true // Does only wildcard '*' match.
-	return deepMatchRune(rname, rpattern, simple)
+	// Does only wildcard '*' match.
+	return deepMatchRune([]rune(name), []rune(pattern), true)
 }
 
 // Match -  finds whether the text matches/satisfies the pattern string.
@@ -49,16 +41,8 @@ func Match(pattern, name string) (matched bool) {
 	if pattern == "*" {
 		return true
 	}
-	rname := make([]rune, 0, len(name))
-	rpattern := make([]rune, 0, len(pattern))
-	for _, r := range name {
-		rname = append(rname, r)
-	}
-	for _, r := range pattern {
-		rpattern = append(rpattern, r)
-	}
-	simple := false // Does extended wildcard '*' and '?' match.
-	return deepMatchRune(rname, rpattern, simple)
+	// Does extended wildcard '*' and '?' match.
+	return deepMatchRune([]rune(name), []rune(pattern), false)
 }
 
 func deepMatchRune(str, pattern []rune, simple bool) bool {