bzip2: runningOrder[] values are always 0..255, make it uint8

function                                             old     new   delta
mainSort                                            1171    1124     -47

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
diff --git a/archival/libarchive/bz/bzlib_private.h b/archival/libarchive/bz/bzlib_private.h
index 8e44a8e..4acaef8 100644
--- a/archival/libarchive/bz/bzlib_private.h
+++ b/archival/libarchive/bz/bzlib_private.h
@@ -192,7 +192,7 @@
 	int32_t  BZ2_hbMakeCodeLengths__weight[BZ_MAX_ALPHA_SIZE * 2];
 	int32_t  BZ2_hbMakeCodeLengths__parent[BZ_MAX_ALPHA_SIZE * 2];
 
-	int32_t  mainSort__runningOrder[256];
+	uint8_t  mainSort__runningOrder[256];
 	int32_t  mainSort__copyStart[256];
 	int32_t  mainSort__copyEnd[256];
 } EState;