(str) String.trim method should accept a list of characters to trim

A DESCRIPTION OF THE REQUEST :
Required method is:
(class String)
public String trim(String chars)



JUSTIFICATION :
Often it is required to trim multiple characters from strings. In TCL, for example, the string trim proc takes a list of characters to trim which is very convenient.

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
For example, if a String x equals " \'test\' ", the call
x.trim(" \\'")
should return "test".