Comments/javadoc should be in en_US, not en_CA.

Change-Id: Ie9dde4971e0a6a8dadd14af43d631158fc488cd8

src/main/java/org/json/JSONTokener.java

@@ -148,7 +148,7 @@ public class JSONTokener {
                 case '#':
                     /*
                      * Skip a # hash end-of-line comment. The JSON RFC doesn't
-                     * specify this behaviour, but it's required to parse
+                     * specify this behavior, but it's required to parse
                      * existing documents. See http://b/2571423.
                      */
                     skipToEndOfLine();