Move flush_outbuf to the file in which it is used, and by doing so fix a

nasty error dealing with two different variables with the same name.

archival/gzip.c

@@ -3380,3 +3380,17 @@ unsigned size;
 	isize += (ulg) len;
 	return (int) len;
 }
+
+/* ===========================================================================
+ * Write the output buffer outbuf[0..outcnt-1] and update bytes_out.
+ * (used for the compressed data only)
+ */
+void flush_outbuf()
+{
+	if (outcnt == 0)
+		return;
+
+	write_buf(ofd, (char *) outbuf, outcnt);
+	bytes_out += (ulg) outcnt;
+	outcnt = 0;
+}