Spotted by Tim Kosse: reput on an already complete file was hanging.

Should be fixed now (we only wait for packets if we know there are some
that haven't been replied to yet).

[originally from svn r3618]

psftp.c

@@ -616,14 +616,15 @@ int sftp_general_put(struct sftp_command *cmd, int restart)
 	    }
 	}
 
+	if (!xfer_done(xfer)) {
 	    pktin = sftp_recv();
 	    ret = xfer_upload_gotpkt(xfer, pktin);
-
 	    if (!ret) {
 		printf("error while writing: %s\n", fxp_error());
 		err = 1;
 	    }
 	}
+    }
 
     xfer_cleanup(xfer);