unxhtmlify.go: Use regex replacement

Use regex to search for the slash bracket of a self-closing tag. Tests
pass, wow. Was not expecting that. I think I need to add more test
cases.

1 files changed, 3 insertions, 2 deletions

diff --git a/unxhtmlify.go b/unxhtmlify.go
index 4e7b175..7013d74 100644
--- a/unxhtmlify.go
+++ b/unxhtmlify.go
@@ -4,7 +4,7 @@ import (
 	"bufio"
 	"fmt"
 	"os"
-	"strings"
+	"regexp"
 )
 
 func main() {
@@ -18,5 +18,6 @@ func main() {
 }
 
 func unxhtmlify_line(s string) string {
-	return strings.Replace(s, " /", "", 1)
+	re := regexp.MustCompile(" ?/>")
+	return re.ReplaceAllString(s, ">")
 }