bzip2: ~1% speedup by special-casing "store 1 bit" function

function                                             old     new   delta
bsW1                                                   -      52     +52
BZ2_compressBlock                                    230     225      -5
BZ2_blockSort                                        125     118      -7
sendMTFValues                                       2070    2051     -19
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 0/3 up/down: 52/-31)             Total: 21 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
diff --git a/archival/libarchive/bz/bzlib.c b/archival/libarchive/bz/bzlib.c
index 3572474..ef98bb2 100644
--- a/archival/libarchive/bz/bzlib.c
+++ b/archival/libarchive/bz/bzlib.c
@@ -55,7 +55,7 @@
 {
 	int i;
 	s->nblock = 0;
-	//indexes inot s->zbits[], initialzation moved to init of s->zbits
+	//indexes into s->zbits[], initialzation moved to init of s->zbits
 	//s->posZ = s->zbits; // was: s->numZ = 0;
 	//s->state_out_pos = s->zbits;
 	BZ_INITIALISE_CRC(s->blockCRC);