lib: Add separator parameter to String::cname()

library/Icinga/Util/String.php

@@ -23,16 +23,17 @@ class String
     }
 
     /**
-     * Uppercase the first character of each word in a string assuming and removing the underscore as word separator
+     * Uppercase the first character of each word in a string
      *
      * Converts 'first_name' to 'firstName' for example.
      *
      * @param   string $name
+     * @param   string $separator Word separator
      *
      * @return  string
      */
-    public static function cname($name)
+    public static function cname($name, $separator = '_')
     {
-        return str_replace(' ', '', ucwords(str_replace('_', ' ', strtolower($name))));
+        return str_replace(' ', '', ucwords(str_replace($separator, ' ', strtolower($name))));
     }
 }