Don't check if the address of an array is NULL.

git-svn-id: svn://svn.code.sf.net/p/bitchx/code/trunk@491 13b04d17-f746-0410-82c6-800466cd88b0

source/cset.c

@@ -560,7 +560,7 @@ int var_index, cnt = 0;
 				return t;
 			}
 		}		
-		return m_strdup(s && *s ? s : empty_string);
+		return m_strdup(*s ? s : empty_string);
 	}
 	return m_strdup(empty_string);
 }