merge patch in support of reproducible builds

[debian/gzip] / doc / gzip.texi

diff --git a/doc/gzip.texi b/doc/gzip.texi
index 3de3063c17b8f612321977646f16ff491beb9e53..5bec221ba2fbc944979b71508b569c0eb5a7cfeb 100644 (file)
--- a/doc/gzip.texi
+++ b/doc/gzip.texi
@@ -7,8 +7,7 @@
 @setchapternewpage odd
 @c %**end of header
 @copying
-This manual is for GNU Gzip
-(version @value{VERSION}, @value{UPDATED}),
+This manual is for GNU Gzip (version @value{VERSION}),
 and documents commands for compressing and decompressing data.
 
 Copyright @copyright{} 1998-1999, 2001-2002, 2006-2007, 2009-2013 Free Software
@@ -208,6 +207,7 @@ Mandatory arguments to long options are mandatory for short options too.
   -V, --version     display version number
   -1, --fast        compress faster
   -9, --best        compress better
+    --rsyncable   Make rsync-friendly archive
 
 With no FILE, or when FILE is -, read standard input.
 
@@ -358,6 +358,14 @@ specified on the command line are directories, @command{gzip} will descend
 into the directory and compress all the files it finds there (or
 decompress them in the case of @command{gunzip}).
 
+@item --rsyncable
+While compressing, synchronize the output occasionally based on
+the input.  This increases size by less than 1 percent most
+cases, but means that the @command{rsync} program can much more efficiently
+synchronize files compressed with this flag.  @command{gunzip}
+cannot tell the difference between a compressed file created
+with this option, and one created without it.
+
 @item --suffix @var{suf}
 @itemx -S @var{suf}
 Use suffix @var{suf} instead of @samp{.gz}.  Any suffix can be