Update pigz to 2.2.5 source code
diff --git a/pigz/pigz.1 b/pigz/pigz.1
index 567c6ca..8d75ca2 100644
--- a/pigz/pigz.1
+++ b/pigz/pigz.1
@@ -63,7 +63,7 @@
 .B -b
 option.  The number of compress threads is set by default to the number
 of online processors,
-which can be changed using the 
+which can be changed using the
 .B -p
 option.  Specifying
 .B -p 1
@@ -86,7 +86,7 @@
 (the main thread) for decompression, but will create three other threads for
 reading, writing, and check calculation, which can speed up decompression
 under some circumstances.  Parallel decompression can be turned off by
-specifying one process 
+specifying one process
 (
 .B -dp 1
 or
@@ -162,6 +162,9 @@
 .B -r --recursive
 Process the contents of all subdirectories.
 .TP
+.B -R --rsyncable
+Input-determined block locations for rsync.
+.TP
 .B -S --suffix .sss
 Use suffix .sss instead of .gz (for compression).
 .TP
@@ -179,9 +182,12 @@
 .TP
 .B -z --zlib
 Compress to zlib (.zz) instead of gzip format.
+.TP
+.B --
+All arguments after "--" are treated as file names (for names that start with "-")
 .SH "COPYRIGHT NOTICE"
 This software is provided 'as-is', without any express or implied
 warranty.  In no event will the author be held liable for any damages
 arising from the use of this software.
 .PP
-Copyright (C) 2007, 2008, 2009, 2010 Mark Adler <madler@alumni.caltech.edu>
+Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012 Mark Adler <madler@alumni.caltech.edu>