Fix typo in @since

Change-Id: I266b0c72d2827bcf2b86ddc6c1892d1a46c548eb
Signed-off-by: Thomas Wolf <thomas.wolf@paranor.ch>

org.eclipse.jgit/src/org/eclipse/jgit/api/PullCommand.java

@@ -418,7 +418,7 @@ public class PullCommand extends TransportCommand<PullCommand, PullResult> {
 	 *
 	 * @param tagOpt
 	 * @return {@code this}
-	 * @Since 4.7
+	 * @since 4.7
 	 */
 	public PullCommand setTagOpt(TagOpt tagOpt) {
 		checkCallable();