Reverted r2884.

If someone wants to use StringUtil.toString(), let them get
the openBox/closeBox/separators they were expected.

Gee, I hope r2885 didn't beak any Log parsing code...


git-svn-id: https://samskivert.googlecode.com/svn/trunk@2886 6335cc39-0255-0410-8fd6-9bcaacd3b74c

src/main/java/com/samskivert/util/StringUtil.java

@@ -531,9 +531,6 @@ public class StringUtil
             }
             buf.append(closeBox);
 
-        } else if (val instanceof Collection<?>) {
-            buf.append(val); // Collections should have reasonable toStrings
-
         } else if (val instanceof Iterable<?>) {
             toString(buf, ((Iterable<?>)val).iterator(), openBox, closeBox);