rename factory method to create()

README.md

@@ -65,7 +65,7 @@ name, interoperate with Buffers, and are `instanceof Buffer`.  Reversible with `
 Restore the global Buffer to the original that was in effect when `sane-buffer` was loaded
 (ie, back to OBuffer._Buffer).
 
-### OBuffer._create( arg, [encodingOrOffset, [length]] )
+### OBuffer.create( arg, [encodingOrOffset, [length]] )
 
 The factory used internally by the constructor to construct new Buffers.  The factory either
 uses `new Buffer` or calls a factory method, depending on which is supported in the current

sane-buffer.js

@@ -17,7 +17,7 @@ var nodeVersion = parseInt(process.version.slice(1));   // version is mocked by
 module.exports = OBuffer;
 
 function OBuffer( arg, encOrOffs, length ) {
-    return _typeconvert(OBuffer._create(arg, encOrOffs, length));
+    return _typeconvert(OBuffer.create(arg, encOrOffs, length));
 }
 util.inherits(OBuffer, Buffer);
 
@@ -40,7 +40,7 @@ OBuffer.concat = function(list, length) { return _typeconvert(Buffer.concat(list
 OBuffer.safe = false;
 OBuffer.install = function() { global.Buffer = OBuffer }
 OBuffer.uninstall = function() { global.Buffer = Buffer }
-OBuffer._create = function _create( arg, encOrOffs, length ) {
+OBuffer.create = function create( arg, encOrOffs, length ) {
     // node through v9 supported the old constructor semantics, 10 and up deprecate it
     return (
         (nodeVersion < 10) ? (OBuffer.safe && _isNumber(arg)) ? _fill0(new Buffer(arg)) : new Buffer(arg, encOrOffs, length) :