xz: Update the man page about --block-size and --block-list.
diff --git a/src/xz/xz.1 b/src/xz/xz.1
index 51409a5..7d7620a 100644
--- a/src/xz/xz.1
+++ b/src/xz/xz.1
@@ -5,7 +5,7 @@
.\" This file has been put into the public domain.
.\" You can do whatever you want with this file.
.\"
-.TH XZ 1 "2013-10-25" "Tukaani" "XZ Utils"
+.TH XZ 1 "2013-11-12" "Tukaani" "XZ Utils"
.
.SH NAME
xz, unxz, xzcat, lzma, unlzma, lzcat \- Compress or decompress .xz and .lzma files
@@ -809,6 +809,12 @@
bytes.
The blocks are compressed independently from each other.
.\" FIXME: Explain how to these can be used for random access and threading.
+.IP ""
+In multi-threaded mode the sizes of the blocks
+are stored in the block headers.
+This isn't done in single-threaded mode,
+so the encoded output won't be
+identical to that of the multi-threaded mode.
.TP
.BI \-\-block\-list= sizes
When compressing to the
@@ -832,26 +838,26 @@
may be used as the last value to indicate that
the rest of the file should be encoded as a single block.
.IP ""
-If this option is used in threaded mode and one specifies
+If one specifies
.I sizes
that exceed the encoder's block size
-(either the default value or the value specified
-with \fB\-\-block\-size=\fIsize\fR),
+(either the default value in threaded mode or
+the value specified with \fB\-\-block\-size=\fIsize\fR),
the encoder will create additional blocks while
keeping the boundaries specified in
.IR sizes .
For example, if one specifies
-.B \-\-threads=2
.B \-\-block\-size=10MiB
.B \-\-block\-list=5MiB,10MiB,8MiB,12MiB,24MiB
and the input file is 80 MiB,
one will get 11 blocks:
5, 10, 8, 10, 2, 10, 10, 4, 10, 10, and 1 MiB.
.IP ""
-.\" FIXME
-.B "In single-threaded mode \-\-block\-size is ignored"
-.B "if \-\-block\-list is also specified."
-.B "This might change before 5.2.0 is released."
+In multi-threaded mode the sizes of the blocks
+are stored in the block headers.
+This isn't done in single-threaded mode,
+so the encoded output won't be
+identical to that of the multi-threaded mode.
.TP
.BI \-\-flush\-timeout= timeout
When compressing, if more than
