Fix wording

Co-authored-by: nagachika <nagachika@ruby-lang.org>

Author: 2 people

en/news/_posts/2024-05-16-dos-rexml-cve-2024-35176.md

@@ -12,7 +12,7 @@ There is a DoS vulnerability in REXML gem. This vulnerability has been assigned
 
 ## Details
 
-When parsing an XML document that has many `<` in an attribute value, REXML gem may take many time.
+When parsing an XML document that has many `<` in an attribute value, REXML gem may take long time.
 
 Please update REXML gem to version 3.2.7 or later.