SiteParserTest: fix format of a comment to be properly understood by pdd.

Correction for 77c78a2 commit.

No functional changes.

Author: php-coder

src/test/java/ru/mystamps/web/util/extractor/SiteParserTest.java

@@ -110,7 +110,7 @@ public void parseShouldRequireNonBlankPageContent() {
 	@Test
 	public void toStringShouldReturnName() {
 		// @todo #685 SiteParserTest:
-		// introduce a method for generating random string of arbitrary length
+		//  introduce a method for generating random string of arbitrary length
 		String expectedName = nullOr(between(1, 15).unicode());
 		parser.setName(expectedName);