Fixed bug when appending a file whose size is a multiple of 512 bytes

lib/tar.js

@@ -56,8 +56,8 @@
 			checksum: '        ',
 			type: '0', // just a file
 			ustar: 'ustar  ',
-			owner: '',
-			group: ''
+			owner: opts.owner || '',
+			group: opts.group || ''
 		};
 
 		// calculate the checksum
@@ -88,7 +88,7 @@
 		this.out.set(input, this.written);
 
 		// to the nearest multiple of recordSize
-		this.written += input.length + (recordSize - (input.length % recordSize));
+		this.written += input.length + (recordSize - (input.length % recordSize || recordSize));
 
 		// make sure there's at least 2 empty records worth of extra space
 		if (this.out.length - this.written < recordSize * 2) {

package.json

@@ -1,7 +1,7 @@
 {
   "name": "tar-js",
   "description": "Tar implemented in the browser",
-  "version": "0.1.0",
+  "version": "0.1.1",
   "homepage": "http://github.com/beatgammit/tar-js",
   "repository": {
     "type": "git",